Home / 90,655.44-125,112.96-54,854.28

Finding the Fourth Proportional to 90,655.44, 125,112.96 and 54,854.28

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Solution

The fourth proportional to 90,655.44, 125,112.96 and 54,854.28 is: 75,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,655.44 : 125,112.96 = 54,854.28 : x
  2. Step 2: Convert to fraction form
    90,655.44/125,112.96 = 54,854.28/x
  3. Step 3: Cross multiply
    90,655.44x = 125,112.96 × 54,854.28
  4. Step 4: Simplify right side
    90,655.44x = 6,862,981,339.47
  5. Step 5: Solve for x
    x = 6,862,981,339.47/90,655.44
  6. Step 6: Final answer
    x = 75,704.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.