Home / 82,943.20-124,414.80-27,539.20

Finding the Fourth Proportional to 82,943.20, 124,414.80 and 27,539.20

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Solution

The fourth proportional to 82,943.20, 124,414.80 and 27,539.20 is: 41,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,943.20 : 124,414.80 = 27,539.20 : x
  2. Step 2: Convert to fraction form
    82,943.20/124,414.80 = 27,539.20/x
  3. Step 3: Cross multiply
    82,943.20x = 124,414.80 × 27,539.20
  4. Step 4: Simplify right side
    82,943.20x = 3,426,284,060.16
  5. Step 5: Solve for x
    x = 3,426,284,060.16/82,943.20
  6. Step 6: Final answer
    x = 41,308.80

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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.