Home / 81,731.62-122,427.33-52,002.19

Finding the Fourth Proportional to 81,731.62, 122,427.33 and 52,002.19

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Solution

The fourth proportional to 81,731.62, 122,427.33 and 52,002.19 is: 77,895.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,731.62 : 122,427.33 = 52,002.19 : x
  2. Step 2: Convert to fraction form
    81,731.62/122,427.33 = 52,002.19/x
  3. Step 3: Cross multiply
    81,731.62x = 122,427.33 × 52,002.19
  4. Step 4: Simplify right side
    81,731.62x = 6,366,489,275.85
  5. Step 5: Solve for x
    x = 6,366,489,275.85/81,731.62
  6. Step 6: Final answer
    x = 77,895.06

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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.