Home / 71,529.17-98,711.87-39,700.11

Finding the Fourth Proportional to 71,529.17, 98,711.87 and 39,700.11

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Solution

The fourth proportional to 71,529.17, 98,711.87 and 39,700.11 is: 54,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,529.17 : 98,711.87 = 39,700.11 : x
  2. Step 2: Convert to fraction form
    71,529.17/98,711.87 = 39,700.11/x
  3. Step 3: Cross multiply
    71,529.17x = 98,711.87 × 39,700.11
  4. Step 4: Simplify right side
    71,529.17x = 3,918,871,898.81
  5. Step 5: Solve for x
    x = 3,918,871,898.81/71,529.17
  6. Step 6: Final answer
    x = 54,787.05

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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.