Home / 78,917.70-118,394.04-22,753.43

Finding the Fourth Proportional to 78,917.70, 118,394.04 and 22,753.43

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Solution

The fourth proportional to 78,917.70, 118,394.04 and 22,753.43 is: 34,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,917.70 : 118,394.04 = 22,753.43 : x
  2. Step 2: Convert to fraction form
    78,917.70/118,394.04 = 22,753.43/x
  3. Step 3: Cross multiply
    78,917.70x = 118,394.04 × 22,753.43
  4. Step 4: Simplify right side
    78,917.70x = 2,693,869,909.59
  5. Step 5: Solve for x
    x = 2,693,869,909.59/78,917.70
  6. Step 6: Final answer
    x = 34,135.18

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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.