Home / 78,814.10-118,221.15-32,042.90

Finding the Fourth Proportional to 78,814.10, 118,221.15 and 32,042.90

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Solution

The fourth proportional to 78,814.10, 118,221.15 and 32,042.90 is: 48,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814.10 : 118,221.15 = 32,042.90 : x
  2. Step 2: Convert to fraction form
    78,814.10/118,221.15 = 32,042.90/x
  3. Step 3: Cross multiply
    78,814.10x = 118,221.15 × 32,042.90
  4. Step 4: Simplify right side
    78,814.10x = 3,788,148,487.34
  5. Step 5: Solve for x
    x = 3,788,148,487.34/78,814.10
  6. Step 6: Final answer
    x = 48,064.35

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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.