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Finding the Fourth Proportional to 57,475.86, 79,353.14 and 39,356.92

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Solution

The fourth proportional to 57,475.86, 79,353.14 and 39,356.92 is: 54,337.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,475.86 : 79,353.14 = 39,356.92 : x
  2. Step 2: Convert to fraction form
    57,475.86/79,353.14 = 39,356.92/x
  3. Step 3: Cross multiply
    57,475.86x = 79,353.14 × 39,356.92
  4. Step 4: Simplify right side
    57,475.86x = 3,123,095,182.73
  5. Step 5: Solve for x
    x = 3,123,095,182.73/57,475.86
  6. Step 6: Final answer
    x = 54,337.51

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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.