Home / 80,762.09-121,117.25-26,716.73

Finding the Fourth Proportional to 80,762.09, 121,117.25 and 26,716.73

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Solution

The fourth proportional to 80,762.09, 121,117.25 and 26,716.73 is: 40,066.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762.09 : 121,117.25 = 26,716.73 : x
  2. Step 2: Convert to fraction form
    80,762.09/121,117.25 = 26,716.73/x
  3. Step 3: Cross multiply
    80,762.09x = 121,117.25 × 26,716.73
  4. Step 4: Simplify right side
    80,762.09x = 3,235,856,327.80
  5. Step 5: Solve for x
    x = 3,235,856,327.80/80,762.09
  6. Step 6: Final answer
    x = 40,066.53

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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.