Home / 90,132.71-124,387.02-49,846.48

Finding the Fourth Proportional to 90,132.71, 124,387.02 and 49,846.48

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Solution

The fourth proportional to 90,132.71, 124,387.02 and 49,846.48 is: 68,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132.71 : 124,387.02 = 49,846.48 : x
  2. Step 2: Convert to fraction form
    90,132.71/124,387.02 = 49,846.48/x
  3. Step 3: Cross multiply
    90,132.71x = 124,387.02 × 49,846.48
  4. Step 4: Simplify right side
    90,132.71x = 6,200,254,793.72
  5. Step 5: Solve for x
    x = 6,200,254,793.72/90,132.71
  6. Step 6: Final answer
    x = 68,790.29

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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.