Home / 91,253.45-125,928.42-50,967.78

Finding the Fourth Proportional to 91,253.45, 125,928.42 and 50,967.78

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Solution

The fourth proportional to 91,253.45, 125,928.42 and 50,967.78 is: 70,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,253.45 : 125,928.42 = 50,967.78 : x
  2. Step 2: Convert to fraction form
    91,253.45/125,928.42 = 50,967.78/x
  3. Step 3: Cross multiply
    91,253.45x = 125,928.42 × 50,967.78
  4. Step 4: Simplify right side
    91,253.45x = 6,418,292,006.31
  5. Step 5: Solve for x
    x = 6,418,292,006.31/91,253.45
  6. Step 6: Final answer
    x = 70,334.79

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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.