Home / 57,652.20-86,510.70-31,358.78

Finding the Fourth Proportional to 57,652.20, 86,510.70 and 31,358.78

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Solution

The fourth proportional to 57,652.20, 86,510.70 and 31,358.78 is: 47,055.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,652.20 : 86,510.70 = 31,358.78 : x
  2. Step 2: Convert to fraction form
    57,652.20/86,510.70 = 31,358.78/x
  3. Step 3: Cross multiply
    57,652.20x = 86,510.70 × 31,358.78
  4. Step 4: Simplify right side
    57,652.20x = 2,712,870,008.95
  5. Step 5: Solve for x
    x = 2,712,870,008.95/57,652.20
  6. Step 6: Final answer
    x = 47,055.79

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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.