Home / 81,419.65-122,150.13-34,026.55

Finding the Fourth Proportional to 81,419.65, 122,150.13 and 34,026.55

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Solution

The fourth proportional to 81,419.65, 122,150.13 and 34,026.55 is: 51,048.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,419.65 : 122,150.13 = 34,026.55 : x
  2. Step 2: Convert to fraction form
    81,419.65/122,150.13 = 34,026.55/x
  3. Step 3: Cross multiply
    81,419.65x = 122,150.13 × 34,026.55
  4. Step 4: Simplify right side
    81,419.65x = 4,156,347,505.95
  5. Step 5: Solve for x
    x = 4,156,347,505.95/81,419.65
  6. Step 6: Final answer
    x = 51,048.46

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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.