Home / 82,905.30-124,285.05-49,638.60

Finding the Fourth Proportional to 82,905.30, 124,285.05 and 49,638.60

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Solution

The fourth proportional to 82,905.30, 124,285.05 and 49,638.60 is: 74,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,905.30 : 124,285.05 = 49,638.60 : x
  2. Step 2: Convert to fraction form
    82,905.30/124,285.05 = 49,638.60/x
  3. Step 3: Cross multiply
    82,905.30x = 124,285.05 × 49,638.60
  4. Step 4: Simplify right side
    82,905.30x = 6,169,335,882.93
  5. Step 5: Solve for x
    x = 6,169,335,882.93/82,905.30
  6. Step 6: Final answer
    x = 74,414.25

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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.