Home / 76,792.56-115,540.20-45,651.12

Finding the Fourth Proportional to 76,792.56, 115,540.20 and 45,651.12

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Solution

The fourth proportional to 76,792.56, 115,540.20 and 45,651.12 is: 68,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,792.56 : 115,540.20 = 45,651.12 : x
  2. Step 2: Convert to fraction form
    76,792.56/115,540.20 = 45,651.12/x
  3. Step 3: Cross multiply
    76,792.56x = 115,540.20 × 45,651.12
  4. Step 4: Simplify right side
    76,792.56x = 5,274,539,535.02
  5. Step 5: Solve for x
    x = 5,274,539,535.02/76,792.56
  6. Step 6: Final answer
    x = 68,685.55

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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.