Home / 77,691.30-116,520.09-27,774.87

Finding the Fourth Proportional to 77,691.30, 116,520.09 and 27,774.87

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Solution

The fourth proportional to 77,691.30, 116,520.09 and 27,774.87 is: 41,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,691.30 : 116,520.09 = 27,774.87 : x
  2. Step 2: Convert to fraction form
    77,691.30/116,520.09 = 27,774.87/x
  3. Step 3: Cross multiply
    77,691.30x = 116,520.09 × 27,774.87
  4. Step 4: Simplify right side
    77,691.30x = 3,236,330,352.14
  5. Step 5: Solve for x
    x = 3,236,330,352.14/77,691.30
  6. Step 6: Final answer
    x = 41,656.28

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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.