Home / 57,711.60-86,556.47-20,262.87

Finding the Fourth Proportional to 57,711.60, 86,556.47 and 20,262.87

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Solution

The fourth proportional to 57,711.60, 86,556.47 and 20,262.87 is: 30,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.60 : 86,556.47 = 20,262.87 : x
  2. Step 2: Convert to fraction form
    57,711.60/86,556.47 = 20,262.87/x
  3. Step 3: Cross multiply
    57,711.60x = 86,556.47 × 20,262.87
  4. Step 4: Simplify right side
    57,711.60x = 1,753,882,397.95
  5. Step 5: Solve for x
    x = 1,753,882,397.95/57,711.60
  6. Step 6: Final answer
    x = 30,390.47

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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.