Home / 57,694.20-86,565.60-31,417.80

Finding the Fourth Proportional to 57,694.20, 86,565.60 and 31,417.80

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Solution

The fourth proportional to 57,694.20, 86,565.60 and 31,417.80 is: 47,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,694.20 : 86,565.60 = 31,417.80 : x
  2. Step 2: Convert to fraction form
    57,694.20/86,565.60 = 31,417.80/x
  3. Step 3: Cross multiply
    57,694.20x = 86,565.60 × 31,417.80
  4. Step 4: Simplify right side
    57,694.20x = 2,719,700,707.68
  5. Step 5: Solve for x
    x = 2,719,700,707.68/57,694.20
  6. Step 6: Final answer
    x = 47,139.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.