Home / 83,514.45-125,314.76-39,145.71

Finding the Fourth Proportional to 83,514.45, 125,314.76 and 39,145.71

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Solution

The fourth proportional to 83,514.45, 125,314.76 and 39,145.71 is: 58,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,514.45 : 125,314.76 = 39,145.71 : x
  2. Step 2: Convert to fraction form
    83,514.45/125,314.76 = 39,145.71/x
  3. Step 3: Cross multiply
    83,514.45x = 125,314.76 × 39,145.71
  4. Step 4: Simplify right side
    83,514.45x = 4,905,535,253.68
  5. Step 5: Solve for x
    x = 4,905,535,253.68/83,514.45
  6. Step 6: Final answer
    x = 58,738.76

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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.