Home / 76,649.20-114,945.12-26,716.48

Finding the Fourth Proportional to 76,649.20, 114,945.12 and 26,716.48

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Solution

The fourth proportional to 76,649.20, 114,945.12 and 26,716.48 is: 40,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,649.20 : 114,945.12 = 26,716.48 : x
  2. Step 2: Convert to fraction form
    76,649.20/114,945.12 = 26,716.48/x
  3. Step 3: Cross multiply
    76,649.20x = 114,945.12 × 26,716.48
  4. Step 4: Simplify right side
    76,649.20x = 3,070,928,999.58
  5. Step 5: Solve for x
    x = 3,070,928,999.58/76,649.20
  6. Step 6: Final answer
    x = 40,064.72

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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.