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Finding the Fourth Proportional to 91,125.92, 125,753.37 and 50,839.71

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Solution

The fourth proportional to 91,125.92, 125,753.37 and 50,839.71 is: 70,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,125.92 : 125,753.37 = 50,839.71 : x
  2. Step 2: Convert to fraction form
    91,125.92/125,753.37 = 50,839.71/x
  3. Step 3: Cross multiply
    91,125.92x = 125,753.37 × 50,839.71
  4. Step 4: Simplify right side
    91,125.92x = 6,393,264,862.32
  5. Step 5: Solve for x
    x = 6,393,264,862.32/91,125.92
  6. Step 6: Final answer
    x = 70,158.58

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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.