Home / 83,619.72-115,318.92-54,927.87

Finding the Fourth Proportional to 83,619.72, 115,318.92 and 54,927.87

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Solution

The fourth proportional to 83,619.72, 115,318.92 and 54,927.87 is: 75,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,619.72 : 115,318.92 = 54,927.87 : x
  2. Step 2: Convert to fraction form
    83,619.72/115,318.92 = 54,927.87/x
  3. Step 3: Cross multiply
    83,619.72x = 115,318.92 × 54,927.87
  4. Step 4: Simplify right side
    83,619.72x = 6,334,222,605.05
  5. Step 5: Solve for x
    x = 6,334,222,605.05/83,619.72
  6. Step 6: Final answer
    x = 75,750.35

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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.