Home / 83,928.18-115,817.27-45,687.79

Finding the Fourth Proportional to 83,928.18, 115,817.27 and 45,687.79

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Solution

The fourth proportional to 83,928.18, 115,817.27 and 45,687.79 is: 63,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,928.18 : 115,817.27 = 45,687.79 : x
  2. Step 2: Convert to fraction form
    83,928.18/115,817.27 = 45,687.79/x
  3. Step 3: Cross multiply
    83,928.18x = 115,817.27 × 45,687.79
  4. Step 4: Simplify right side
    83,928.18x = 5,291,435,110.13
  5. Step 5: Solve for x
    x = 5,291,435,110.13/83,928.18
  6. Step 6: Final answer
    x = 63,047.18

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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.