Home / 71,463.45-98,614.76-39,631.17

Finding the Fourth Proportional to 71,463.45, 98,614.76 and 39,631.17

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Solution

The fourth proportional to 71,463.45, 98,614.76 and 39,631.17 is: 54,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,463.45 : 98,614.76 = 39,631.17 : x
  2. Step 2: Convert to fraction form
    71,463.45/98,614.76 = 39,631.17/x
  3. Step 3: Cross multiply
    71,463.45x = 98,614.76 × 39,631.17
  4. Step 4: Simplify right side
    71,463.45x = 3,908,218,119.91
  5. Step 5: Solve for x
    x = 3,908,218,119.91/71,463.45
  6. Step 6: Final answer
    x = 54,688.35

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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.