Home / 81,092.40-111,906.48-45,283.04

Finding the Fourth Proportional to 81,092.40, 111,906.48 and 45,283.04

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Solution

The fourth proportional to 81,092.40, 111,906.48 and 45,283.04 is: 62,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,092.40 : 111,906.48 = 45,283.04 : x
  2. Step 2: Convert to fraction form
    81,092.40/111,906.48 = 45,283.04/x
  3. Step 3: Cross multiply
    81,092.40x = 111,906.48 × 45,283.04
  4. Step 4: Simplify right side
    81,092.40x = 5,067,465,610.10
  5. Step 5: Solve for x
    x = 5,067,465,610.10/81,092.40
  6. Step 6: Final answer
    x = 62,490.02

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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.