Home / 80,729.56-121,113.78-25,325.56

Finding the Fourth Proportional to 80,729.56, 121,113.78 and 25,325.56

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Solution

The fourth proportional to 80,729.56, 121,113.78 and 25,325.56 is: 37,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,729.56 : 121,113.78 = 25,325.56 : x
  2. Step 2: Convert to fraction form
    80,729.56/121,113.78 = 25,325.56/x
  3. Step 3: Cross multiply
    80,729.56x = 121,113.78 × 25,325.56
  4. Step 4: Simplify right side
    80,729.56x = 3,067,274,302.22
  5. Step 5: Solve for x
    x = 3,067,274,302.22/80,729.56
  6. Step 6: Final answer
    x = 37,994.44

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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.