Home / 78,051.20-117,103.08-24,751.92

Finding the Fourth Proportional to 78,051.20, 117,103.08 and 24,751.92

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Solution

The fourth proportional to 78,051.20, 117,103.08 and 24,751.92 is: 37,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,051.20 : 117,103.08 = 24,751.92 : x
  2. Step 2: Convert to fraction form
    78,051.20/117,103.08 = 24,751.92/x
  3. Step 3: Cross multiply
    78,051.20x = 117,103.08 × 24,751.92
  4. Step 4: Simplify right side
    78,051.20x = 2,898,526,067.91
  5. Step 5: Solve for x
    x = 2,898,526,067.91/78,051.20
  6. Step 6: Final answer
    x = 37,136.21

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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.