Home / 91,626.20-126,432.40-51,330.05

Finding the Fourth Proportional to 91,626.20, 126,432.40 and 51,330.05

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Solution

The fourth proportional to 91,626.20, 126,432.40 and 51,330.05 is: 70,828.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,626.20 : 126,432.40 = 51,330.05 : x
  2. Step 2: Convert to fraction form
    91,626.20/126,432.40 = 51,330.05/x
  3. Step 3: Cross multiply
    91,626.20x = 126,432.40 × 51,330.05
  4. Step 4: Simplify right side
    91,626.20x = 6,489,780,524.81
  5. Step 5: Solve for x
    x = 6,489,780,524.81/91,626.20
  6. Step 6: Final answer
    x = 70,828.88

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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.