Home / 76,945.20-115,432.68-29,556.72

Finding the Fourth Proportional to 76,945.20, 115,432.68 and 29,556.72

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Solution

The fourth proportional to 76,945.20, 115,432.68 and 29,556.72 is: 44,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,945.20 : 115,432.68 = 29,556.72 : x
  2. Step 2: Convert to fraction form
    76,945.20/115,432.68 = 29,556.72/x
  3. Step 3: Cross multiply
    76,945.20x = 115,432.68 × 29,556.72
  4. Step 4: Simplify right side
    76,945.20x = 3,411,811,401.61
  5. Step 5: Solve for x
    x = 3,411,811,401.61/76,945.20
  6. Step 6: Final answer
    x = 44,340.80

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1.5x scale

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.