Home / 85,148.52-117,504.90-49,359.30

Finding the Fourth Proportional to 85,148.52, 117,504.90 and 49,359.30

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Solution

The fourth proportional to 85,148.52, 117,504.90 and 49,359.30 is: 68,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.52 : 117,504.90 = 49,359.30 : x
  2. Step 2: Convert to fraction form
    85,148.52/117,504.90 = 49,359.30/x
  3. Step 3: Cross multiply
    85,148.52x = 117,504.90 × 49,359.30
  4. Step 4: Simplify right side
    85,148.52x = 5,799,959,610.57
  5. Step 5: Solve for x
    x = 5,799,959,610.57/85,148.52
  6. Step 6: Final answer
    x = 68,115.80

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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.