Home / 81,895.75-122,843.68-22,731.47

Finding the Fourth Proportional to 81,895.75, 122,843.68 and 22,731.47

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Solution

The fourth proportional to 81,895.75, 122,843.68 and 22,731.47 is: 34,097.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,895.75 : 122,843.68 = 22,731.47 : x
  2. Step 2: Convert to fraction form
    81,895.75/122,843.68 = 22,731.47/x
  3. Step 3: Cross multiply
    81,895.75x = 122,843.68 × 22,731.47
  4. Step 4: Simplify right side
    81,895.75x = 2,792,417,702.51
  5. Step 5: Solve for x
    x = 2,792,417,702.51/81,895.75
  6. Step 6: Final answer
    x = 34,097.23

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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.