Home / 81,374.50-122,079.16-25,213.36

Finding the Fourth Proportional to 81,374.50, 122,079.16 and 25,213.36

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Solution

The fourth proportional to 81,374.50, 122,079.16 and 25,213.36 is: 37,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.50 : 122,079.16 = 25,213.36 : x
  2. Step 2: Convert to fraction form
    81,374.50/122,079.16 = 25,213.36/x
  3. Step 3: Cross multiply
    81,374.50x = 122,079.16 × 25,213.36
  4. Step 4: Simplify right side
    81,374.50x = 3,078,025,535.90
  5. Step 5: Solve for x
    x = 3,078,025,535.90/81,374.50
  6. Step 6: Final answer
    x = 37,825.43

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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.