Home / 86,074.92-129,120.48-29,906.28

Finding the Fourth Proportional to 86,074.92, 129,120.48 and 29,906.28

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Solution

The fourth proportional to 86,074.92, 129,120.48 and 29,906.28 is: 44,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,074.92 : 129,120.48 = 29,906.28 : x
  2. Step 2: Convert to fraction form
    86,074.92/129,120.48 = 29,906.28/x
  3. Step 3: Cross multiply
    86,074.92x = 129,120.48 × 29,906.28
  4. Step 4: Simplify right side
    86,074.92x = 3,861,513,228.61
  5. Step 5: Solve for x
    x = 3,861,513,228.61/86,074.92
  6. Step 6: Final answer
    x = 44,862.23

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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.