Home / 81,949.40-122,963.10-29,364.20

Finding the Fourth Proportional to 81,949.40, 122,963.10 and 29,364.20

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Solution

The fourth proportional to 81,949.40, 122,963.10 and 29,364.20 is: 44,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,949.40 : 122,963.10 = 29,364.20 : x
  2. Step 2: Convert to fraction form
    81,949.40/122,963.10 = 29,364.20/x
  3. Step 3: Cross multiply
    81,949.40x = 122,963.10 × 29,364.20
  4. Step 4: Simplify right side
    81,949.40x = 3,610,713,061.02
  5. Step 5: Solve for x
    x = 3,610,713,061.02/81,949.40
  6. Step 6: Final answer
    x = 44,060.27

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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.