Home / 81,272.90-112,179.14-47,287.95

Finding the Fourth Proportional to 81,272.90, 112,179.14 and 47,287.95

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Solution

The fourth proportional to 81,272.90, 112,179.14 and 47,287.95 is: 65,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,272.90 : 112,179.14 = 47,287.95 : x
  2. Step 2: Convert to fraction form
    81,272.90/112,179.14 = 47,287.95/x
  3. Step 3: Cross multiply
    81,272.90x = 112,179.14 × 47,287.95
  4. Step 4: Simplify right side
    81,272.90x = 5,304,720,906.25
  5. Step 5: Solve for x
    x = 5,304,720,906.25/81,272.90
  6. Step 6: Final answer
    x = 65,270.48

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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.