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Finding the Fourth Proportional to 57,930.68, 79,950.84 and 32,781.80

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Solution

The fourth proportional to 57,930.68, 79,950.84 and 32,781.80 is: 45,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,930.68 : 79,950.84 = 32,781.80 : x
  2. Step 2: Convert to fraction form
    57,930.68/79,950.84 = 32,781.80/x
  3. Step 3: Cross multiply
    57,930.68x = 79,950.84 × 32,781.80
  4. Step 4: Simplify right side
    57,930.68x = 2,620,932,446.71
  5. Step 5: Solve for x
    x = 2,620,932,446.71/57,930.68
  6. Step 6: Final answer
    x = 45,242.56

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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.