Home / 87,001.20-130,404.60-37,072.80

Finding the Fourth Proportional to 87,001.20, 130,404.60 and 37,072.80

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Solution

The fourth proportional to 87,001.20, 130,404.60 and 37,072.80 is: 55,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,001.20 : 130,404.60 = 37,072.80 : x
  2. Step 2: Convert to fraction form
    87,001.20/130,404.60 = 37,072.80/x
  3. Step 3: Cross multiply
    87,001.20x = 130,404.60 × 37,072.80
  4. Step 4: Simplify right side
    87,001.20x = 4,834,463,654.88
  5. Step 5: Solve for x
    x = 4,834,463,654.88/87,001.20
  6. Step 6: Final answer
    x = 55,567.78

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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.