Home / 87,357.85-130,943.30-45,195.46

Finding the Fourth Proportional to 87,357.85, 130,943.30 and 45,195.46

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Solution

The fourth proportional to 87,357.85, 130,943.30 and 45,195.46 is: 67,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,357.85 : 130,943.30 = 45,195.46 : x
  2. Step 2: Convert to fraction form
    87,357.85/130,943.30 = 45,195.46/x
  3. Step 3: Cross multiply
    87,357.85x = 130,943.30 × 45,195.46
  4. Step 4: Simplify right side
    87,357.85x = 5,918,042,124.08
  5. Step 5: Solve for x
    x = 5,918,042,124.08/87,357.85
  6. Step 6: Final answer
    x = 67,744.83

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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.