Home / 75,166.30-103,679.56-48,342.75

Finding the Fourth Proportional to 75,166.30, 103,679.56 and 48,342.75

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Solution

The fourth proportional to 75,166.30, 103,679.56 and 48,342.75 is: 66,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,166.30 : 103,679.56 = 48,342.75 : x
  2. Step 2: Convert to fraction form
    75,166.30/103,679.56 = 48,342.75/x
  3. Step 3: Cross multiply
    75,166.30x = 103,679.56 × 48,342.75
  4. Step 4: Simplify right side
    75,166.30x = 5,012,155,049.19
  5. Step 5: Solve for x
    x = 5,012,155,049.19/75,166.30
  6. Step 6: Final answer
    x = 66,680.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.