Home / 83,605.11-115,470.88-55,052.40

Finding the Fourth Proportional to 83,605.11, 115,470.88 and 55,052.40

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Solution

The fourth proportional to 83,605.11, 115,470.88 and 55,052.40 is: 76,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,605.11 : 115,470.88 = 55,052.40 : x
  2. Step 2: Convert to fraction form
    83,605.11/115,470.88 = 55,052.40/x
  3. Step 3: Cross multiply
    83,605.11x = 115,470.88 × 55,052.40
  4. Step 4: Simplify right side
    83,605.11x = 6,356,949,369.50
  5. Step 5: Solve for x
    x = 6,356,949,369.50/83,605.11
  6. Step 6: Final answer
    x = 76,035.42

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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.