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Finding the Fourth Proportional to 86,040.98, 129,060.96 and 33,450.46

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Solution

The fourth proportional to 86,040.98, 129,060.96 and 33,450.46 is: 50,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,040.98 : 129,060.96 = 33,450.46 : x
  2. Step 2: Convert to fraction form
    86,040.98/129,060.96 = 33,450.46/x
  3. Step 3: Cross multiply
    86,040.98x = 129,060.96 × 33,450.46
  4. Step 4: Simplify right side
    86,040.98x = 4,317,148,480.04
  5. Step 5: Solve for x
    x = 4,317,148,480.04/86,040.98
  6. Step 6: Final answer
    x = 50,175.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.