Home / 91,067.28-125,665.20-50,777.88

Finding the Fourth Proportional to 91,067.28, 125,665.20 and 50,777.88

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Solution

The fourth proportional to 91,067.28, 125,665.20 and 50,777.88 is: 70,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.28 : 125,665.20 = 50,777.88 : x
  2. Step 2: Convert to fraction form
    91,067.28/125,665.20 = 50,777.88/x
  3. Step 3: Cross multiply
    91,067.28x = 125,665.20 × 50,777.88
  4. Step 4: Simplify right side
    91,067.28x = 6,381,012,445.78
  5. Step 5: Solve for x
    x = 6,381,012,445.78/91,067.28
  6. Step 6: Final answer
    x = 70,069.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.