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Finding the Fourth Proportional to 81,059.60, 111,862.02 and 45,249.32

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Solution

The fourth proportional to 81,059.60, 111,862.02 and 45,249.32 is: 62,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,059.60 : 111,862.02 = 45,249.32 : x
  2. Step 2: Convert to fraction form
    81,059.60/111,862.02 = 45,249.32/x
  3. Step 3: Cross multiply
    81,059.60x = 111,862.02 × 45,249.32
  4. Step 4: Simplify right side
    81,059.60x = 5,061,680,338.83
  5. Step 5: Solve for x
    x = 5,061,680,338.83/81,059.60
  6. Step 6: Final answer
    x = 62,443.93

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1.5x scale

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.