Home / 87,055.42-130,592.50-37,140.80

Finding the Fourth Proportional to 87,055.42, 130,592.50 and 37,140.80

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Solution

The fourth proportional to 87,055.42, 130,592.50 and 37,140.80 is: 55,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,055.42 : 130,592.50 = 37,140.80 : x
  2. Step 2: Convert to fraction form
    87,055.42/130,592.50 = 37,140.80/x
  3. Step 3: Cross multiply
    87,055.42x = 130,592.50 × 37,140.80
  4. Step 4: Simplify right side
    87,055.42x = 4,850,309,924
  5. Step 5: Solve for x
    x = 4,850,309,924/87,055.42
  6. Step 6: Final answer
    x = 55,715.20

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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.