Home / 82,255.48-123,432.36-75,563.20

Finding the Fourth Proportional to 82,255.48, 123,432.36 and 75,563.20

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Solution

The fourth proportional to 82,255.48, 123,432.36 and 75,563.20 is: 113,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,255.48 : 123,432.36 = 75,563.20 : x
  2. Step 2: Convert to fraction form
    82,255.48/123,432.36 = 75,563.20/x
  3. Step 3: Cross multiply
    82,255.48x = 123,432.36 × 75,563.20
  4. Step 4: Simplify right side
    82,255.48x = 9,326,944,105.15
  5. Step 5: Solve for x
    x = 9,326,944,105.15/82,255.48
  6. Step 6: Final answer
    x = 113,389.94

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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.