Home / 78,909.48-118,365.44-22,754.61

Finding the Fourth Proportional to 78,909.48, 118,365.44 and 22,754.61

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Solution

The fourth proportional to 78,909.48, 118,365.44 and 22,754.61 is: 34,132.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.48 : 118,365.44 = 22,754.61 : x
  2. Step 2: Convert to fraction form
    78,909.48/118,365.44 = 22,754.61/x
  3. Step 3: Cross multiply
    78,909.48x = 118,365.44 × 22,754.61
  4. Step 4: Simplify right side
    78,909.48x = 2,693,359,310.91
  5. Step 5: Solve for x
    x = 2,693,359,310.91/78,909.48
  6. Step 6: Final answer
    x = 34,132.27

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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.