Home / 76,731.90-115,110.45-24,128.70

Finding the Fourth Proportional to 76,731.90, 115,110.45 and 24,128.70

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Solution

The fourth proportional to 76,731.90, 115,110.45 and 24,128.70 is: 36,197.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731.90 : 115,110.45 = 24,128.70 : x
  2. Step 2: Convert to fraction form
    76,731.90/115,110.45 = 24,128.70/x
  3. Step 3: Cross multiply
    76,731.90x = 115,110.45 × 24,128.70
  4. Step 4: Simplify right side
    76,731.90x = 2,777,465,514.92
  5. Step 5: Solve for x
    x = 2,777,465,514.92/76,731.90
  6. Step 6: Final answer
    x = 36,197.01

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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.