Home / 71,153.28-98,190.72-39,322.17

Finding the Fourth Proportional to 71,153.28, 98,190.72 and 39,322.17

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Solution

The fourth proportional to 71,153.28, 98,190.72 and 39,322.17 is: 54,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.28 : 98,190.72 = 39,322.17 : x
  2. Step 2: Convert to fraction form
    71,153.28/98,190.72 = 39,322.17/x
  3. Step 3: Cross multiply
    71,153.28x = 98,190.72 × 39,322.17
  4. Step 4: Simplify right side
    71,153.28x = 3,861,072,184.26
  5. Step 5: Solve for x
    x = 3,861,072,184.26/71,153.28
  6. Step 6: Final answer
    x = 54,264.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.