Home / 84,016.16-115,941.38-48,211.78

Finding the Fourth Proportional to 84,016.16, 115,941.38 and 48,211.78

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Solution

The fourth proportional to 84,016.16, 115,941.38 and 48,211.78 is: 66,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,016.16 : 115,941.38 = 48,211.78 : x
  2. Step 2: Convert to fraction form
    84,016.16/115,941.38 = 48,211.78/x
  3. Step 3: Cross multiply
    84,016.16x = 115,941.38 × 48,211.78
  4. Step 4: Simplify right side
    84,016.16x = 5,589,739,725.75
  5. Step 5: Solve for x
    x = 5,589,739,725.75/84,016.16
  6. Step 6: Final answer
    x = 66,531.72

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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.