Home / 77,171.72-115,775.96-24,581.12

Finding the Fourth Proportional to 77,171.72, 115,775.96 and 24,581.12

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Solution

The fourth proportional to 77,171.72, 115,775.96 and 24,581.12 is: 36,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171.72 : 115,775.96 = 24,581.12 : x
  2. Step 2: Convert to fraction form
    77,171.72/115,775.96 = 24,581.12/x
  3. Step 3: Cross multiply
    77,171.72x = 115,775.96 × 24,581.12
  4. Step 4: Simplify right side
    77,171.72x = 2,845,902,765.88
  5. Step 5: Solve for x
    x = 2,845,902,765.88/77,171.72
  6. Step 6: Final answer
    x = 36,877.53

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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.