Home / 82,791.48-124,148.34-38,390.52

Finding the Fourth Proportional to 82,791.48, 124,148.34 and 38,390.52

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Solution

The fourth proportional to 82,791.48, 124,148.34 and 38,390.52 is: 57,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,791.48 : 124,148.34 = 38,390.52 : x
  2. Step 2: Convert to fraction form
    82,791.48/124,148.34 = 38,390.52/x
  3. Step 3: Cross multiply
    82,791.48x = 124,148.34 × 38,390.52
  4. Step 4: Simplify right side
    82,791.48x = 4,766,119,329.74
  5. Step 5: Solve for x
    x = 4,766,119,329.74/82,791.48
  6. Step 6: Final answer
    x = 57,567.75

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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.