Home / 82,711.35-124,118.06-38,329.83

Finding the Fourth Proportional to 82,711.35, 124,118.06 and 38,329.83

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Solution

The fourth proportional to 82,711.35, 124,118.06 and 38,329.83 is: 57,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,711.35 : 124,118.06 = 38,329.83 : x
  2. Step 2: Convert to fraction form
    82,711.35/124,118.06 = 38,329.83/x
  3. Step 3: Cross multiply
    82,711.35x = 124,118.06 × 38,329.83
  4. Step 4: Simplify right side
    82,711.35x = 4,757,423,948.08
  5. Step 5: Solve for x
    x = 4,757,423,948.08/82,711.35
  6. Step 6: Final answer
    x = 57,518.39

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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.