Home / 91,254.43-125,016.47-87,843.06

Finding the Fourth Proportional to 91,254.43, 125,016.47 and 87,843.06

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Solution

The fourth proportional to 91,254.43, 125,016.47 and 87,843.06 is: 120,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,254.43 : 125,016.47 = 87,843.06 : x
  2. Step 2: Convert to fraction form
    91,254.43/125,016.47 = 87,843.06/x
  3. Step 3: Cross multiply
    91,254.43x = 125,016.47 × 87,843.06
  4. Step 4: Simplify right side
    91,254.43x = 10,981,829,275.20
  5. Step 5: Solve for x
    x = 10,981,829,275.20/91,254.43
  6. Step 6: Final answer
    x = 120,342.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.