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Finding the Fourth Proportional to 84,380.55, 126,570.95 and 34,460.65

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Solution

The fourth proportional to 84,380.55, 126,570.95 and 34,460.65 is: 51,691.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,380.55 : 126,570.95 = 34,460.65 : x
  2. Step 2: Convert to fraction form
    84,380.55/126,570.95 = 34,460.65/x
  3. Step 3: Cross multiply
    84,380.55x = 126,570.95 × 34,460.65
  4. Step 4: Simplify right side
    84,380.55x = 4,361,716,719.39
  5. Step 5: Solve for x
    x = 4,361,716,719.39/84,380.55
  6. Step 6: Final answer
    x = 51,691.02

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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.