Home / 80,761.36-111,419.72-59,591.12

Finding the Fourth Proportional to 80,761.36, 111,419.72 and 59,591.12

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Solution

The fourth proportional to 80,761.36, 111,419.72 and 59,591.12 is: 82,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,761.36 : 111,419.72 = 59,591.12 : x
  2. Step 2: Convert to fraction form
    80,761.36/111,419.72 = 59,591.12/x
  3. Step 3: Cross multiply
    80,761.36x = 111,419.72 × 59,591.12
  4. Step 4: Simplify right side
    80,761.36x = 6,639,625,904.89
  5. Step 5: Solve for x
    x = 6,639,625,904.89/80,761.36
  6. Step 6: Final answer
    x = 82,212.90

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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.