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Finding the Fourth Proportional to 68,932.71, 95,127.03 and 38,718.90

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Solution

The fourth proportional to 68,932.71, 95,127.03 and 38,718.90 is: 53,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,932.71 : 95,127.03 = 38,718.90 : x
  2. Step 2: Convert to fraction form
    68,932.71/95,127.03 = 38,718.90/x
  3. Step 3: Cross multiply
    68,932.71x = 95,127.03 × 38,718.90
  4. Step 4: Simplify right side
    68,932.71x = 3,683,213,961.87
  5. Step 5: Solve for x
    x = 3,683,213,961.87/68,932.71
  6. Step 6: Final answer
    x = 53,432.02

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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.