Home / 76,881.89-115,322.15-24,291.38

Finding the Fourth Proportional to 76,881.89, 115,322.15 and 24,291.38

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Solution

The fourth proportional to 76,881.89, 115,322.15 and 24,291.38 is: 36,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,881.89 : 115,322.15 = 24,291.38 : x
  2. Step 2: Convert to fraction form
    76,881.89/115,322.15 = 24,291.38/x
  3. Step 3: Cross multiply
    76,881.89x = 115,322.15 × 24,291.38
  4. Step 4: Simplify right side
    76,881.89x = 2,801,334,517.10
  5. Step 5: Solve for x
    x = 2,801,334,517.10/76,881.89
  6. Step 6: Final answer
    x = 36,436.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.