Home / 81,747.92-122,630.52-34,988.24

Finding the Fourth Proportional to 81,747.92, 122,630.52 and 34,988.24

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Solution

The fourth proportional to 81,747.92, 122,630.52 and 34,988.24 is: 52,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,747.92 : 122,630.52 = 34,988.24 : x
  2. Step 2: Convert to fraction form
    81,747.92/122,630.52 = 34,988.24/x
  3. Step 3: Cross multiply
    81,747.92x = 122,630.52 × 34,988.24
  4. Step 4: Simplify right side
    81,747.92x = 4,290,626,065.08
  5. Step 5: Solve for x
    x = 4,290,626,065.08/81,747.92
  6. Step 6: Final answer
    x = 52,486.06

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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.