Home / 91,540.80-126,322.56-51,253.92

Finding the Fourth Proportional to 91,540.80, 126,322.56 and 51,253.92

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Solution

The fourth proportional to 91,540.80, 126,322.56 and 51,253.92 is: 70,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,540.80 : 126,322.56 = 51,253.92 : x
  2. Step 2: Convert to fraction form
    91,540.80/126,322.56 = 51,253.92/x
  3. Step 3: Cross multiply
    91,540.80x = 126,322.56 × 51,253.92
  4. Step 4: Simplify right side
    91,540.80x = 6,474,526,384.44
  5. Step 5: Solve for x
    x = 6,474,526,384.44/91,540.80
  6. Step 6: Final answer
    x = 70,728.31

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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.