Home / 81,870.04-122,805.06-22,705.71

Finding the Fourth Proportional to 81,870.04, 122,805.06 and 22,705.71

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Solution

The fourth proportional to 81,870.04, 122,805.06 and 22,705.71 is: 34,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,870.04 : 122,805.06 = 22,705.71 : x
  2. Step 2: Convert to fraction form
    81,870.04/122,805.06 = 22,705.71/x
  3. Step 3: Cross multiply
    81,870.04x = 122,805.06 × 22,705.71
  4. Step 4: Simplify right side
    81,870.04x = 2,788,375,910.55
  5. Step 5: Solve for x
    x = 2,788,375,910.55/81,870.04
  6. Step 6: Final answer
    x = 34,058.56

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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.