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Finding the Fourth Proportional to 60,979.84, 91,100.24 and 38,614.12

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Solution

The fourth proportional to 60,979.84, 91,100.24 and 38,614.12 is: 57,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,979.84 : 91,100.24 = 38,614.12 : x
  2. Step 2: Convert to fraction form
    60,979.84/91,100.24 = 38,614.12/x
  3. Step 3: Cross multiply
    60,979.84x = 91,100.24 × 38,614.12
  4. Step 4: Simplify right side
    60,979.84x = 3,517,755,599.39
  5. Step 5: Solve for x
    x = 3,517,755,599.39/60,979.84
  6. Step 6: Final answer
    x = 57,687.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.