Home / 91,375.20-126,100.40-51,089.06

Finding the Fourth Proportional to 91,375.20, 126,100.40 and 51,089.06

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Solution

The fourth proportional to 91,375.20, 126,100.40 and 51,089.06 is: 70,504.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,375.20 : 126,100.40 = 51,089.06 : x
  2. Step 2: Convert to fraction form
    91,375.20/126,100.40 = 51,089.06/x
  3. Step 3: Cross multiply
    91,375.20x = 126,100.40 × 51,089.06
  4. Step 4: Simplify right side
    91,375.20x = 6,442,350,901.62
  5. Step 5: Solve for x
    x = 6,442,350,901.62/91,375.20
  6. Step 6: Final answer
    x = 70,504.37

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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.