Home / 81,587.17-122,296.57-34,229.76

Finding the Fourth Proportional to 81,587.17, 122,296.57 and 34,229.76

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Solution

The fourth proportional to 81,587.17, 122,296.57 and 34,229.76 is: 51,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,587.17 : 122,296.57 = 34,229.76 : x
  2. Step 2: Convert to fraction form
    81,587.17/122,296.57 = 34,229.76/x
  3. Step 3: Cross multiply
    81,587.17x = 122,296.57 × 34,229.76
  4. Step 4: Simplify right side
    81,587.17x = 4,186,182,872.02
  5. Step 5: Solve for x
    x = 4,186,182,872.02/81,587.17
  6. Step 6: Final answer
    x = 51,309.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.