Home / 81,479.50-122,243.01-34,737.10

Finding the Fourth Proportional to 81,479.50, 122,243.01 and 34,737.10

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Solution

The fourth proportional to 81,479.50, 122,243.01 and 34,737.10 is: 52,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,479.50 : 122,243.01 = 34,737.10 : x
  2. Step 2: Convert to fraction form
    81,479.50/122,243.01 = 34,737.10/x
  3. Step 3: Cross multiply
    81,479.50x = 122,243.01 × 34,737.10
  4. Step 4: Simplify right side
    81,479.50x = 4,246,367,662.67
  5. Step 5: Solve for x
    x = 4,246,367,662.67/81,479.50
  6. Step 6: Final answer
    x = 52,115.78

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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.