Home / 76,945.60-115,418.40-24,371.20

Finding the Fourth Proportional to 76,945.60, 115,418.40 and 24,371.20

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Solution

The fourth proportional to 76,945.60, 115,418.40 and 24,371.20 is: 36,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,945.60 : 115,418.40 = 24,371.20 : x
  2. Step 2: Convert to fraction form
    76,945.60/115,418.40 = 24,371.20/x
  3. Step 3: Cross multiply
    76,945.60x = 115,418.40 × 24,371.20
  4. Step 4: Simplify right side
    76,945.60x = 2,812,884,910.08
  5. Step 5: Solve for x
    x = 2,812,884,910.08/76,945.60
  6. Step 6: Final answer
    x = 36,556.80

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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.