Home / 77,027.10-115,540.65-27,114.90

Finding the Fourth Proportional to 77,027.10, 115,540.65 and 27,114.90

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Solution

The fourth proportional to 77,027.10, 115,540.65 and 27,114.90 is: 40,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,027.10 : 115,540.65 = 27,114.90 : x
  2. Step 2: Convert to fraction form
    77,027.10/115,540.65 = 27,114.90/x
  3. Step 3: Cross multiply
    77,027.10x = 115,540.65 × 27,114.90
  4. Step 4: Simplify right side
    77,027.10x = 3,132,873,170.69
  5. Step 5: Solve for x
    x = 3,132,873,170.69/77,027.10
  6. Step 6: Final answer
    x = 40,672.35

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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.