Home / 87,275.08-130,921.08-34,672.78

Finding the Fourth Proportional to 87,275.08, 130,921.08 and 34,672.78

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Solution

The fourth proportional to 87,275.08, 130,921.08 and 34,672.78 is: 52,012.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.08 : 130,921.08 = 34,672.78 : x
  2. Step 2: Convert to fraction form
    87,275.08/130,921.08 = 34,672.78/x
  3. Step 3: Cross multiply
    87,275.08x = 130,921.08 × 34,672.78
  4. Step 4: Simplify right side
    87,275.08x = 4,539,397,804.20
  5. Step 5: Solve for x
    x = 4,539,397,804.20/87,275.08
  6. Step 6: Final answer
    x = 52,012.53

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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.