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Finding the Fourth Proportional to 86,372.84, 129,559.28 and 33,745.43

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Solution

The fourth proportional to 86,372.84, 129,559.28 and 33,745.43 is: 50,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,372.84 : 129,559.28 = 33,745.43 : x
  2. Step 2: Convert to fraction form
    86,372.84/129,559.28 = 33,745.43/x
  3. Step 3: Cross multiply
    86,372.84x = 129,559.28 × 33,745.43
  4. Step 4: Simplify right side
    86,372.84x = 4,372,033,769.26
  5. Step 5: Solve for x
    x = 4,372,033,769.26/86,372.84
  6. Step 6: Final answer
    x = 50,618.15

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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.