Home / 81,177.40-112,059.30-49,356.46

Finding the Fourth Proportional to 81,177.40, 112,059.30 and 49,356.46

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Solution

The fourth proportional to 81,177.40, 112,059.30 and 49,356.46 is: 68,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,177.40 : 112,059.30 = 49,356.46 : x
  2. Step 2: Convert to fraction form
    81,177.40/112,059.30 = 49,356.46/x
  3. Step 3: Cross multiply
    81,177.40x = 112,059.30 × 49,356.46
  4. Step 4: Simplify right side
    81,177.40x = 5,530,850,358.08
  5. Step 5: Solve for x
    x = 5,530,850,358.08/81,177.40
  6. Step 6: Final answer
    x = 68,132.88

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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.