Home / 82,787.52-124,151.04-30,181.44

Finding the Fourth Proportional to 82,787.52, 124,151.04 and 30,181.44

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Solution

The fourth proportional to 82,787.52, 124,151.04 and 30,181.44 is: 45,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,787.52 : 124,151.04 = 30,181.44 : x
  2. Step 2: Convert to fraction form
    82,787.52/124,151.04 = 30,181.44/x
  3. Step 3: Cross multiply
    82,787.52x = 124,151.04 × 30,181.44
  4. Step 4: Simplify right side
    82,787.52x = 3,747,057,164.70
  5. Step 5: Solve for x
    x = 3,747,057,164.70/82,787.52
  6. Step 6: Final answer
    x = 45,261.14

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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.