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Finding the Fourth Proportional to 86,015.81, 129,060.30 and 41,675.60

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Solution

The fourth proportional to 86,015.81, 129,060.30 and 41,675.60 is: 62,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015.81 : 129,060.30 = 41,675.60 : x
  2. Step 2: Convert to fraction form
    86,015.81/129,060.30 = 41,675.60/x
  3. Step 3: Cross multiply
    86,015.81x = 129,060.30 × 41,675.60
  4. Step 4: Simplify right side
    86,015.81x = 5,378,665,438.68
  5. Step 5: Solve for x
    x = 5,378,665,438.68/86,015.81
  6. Step 6: Final answer
    x = 62,531.13

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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.