Home / 91,674.20-126,519.36-51,388.04

Finding the Fourth Proportional to 91,674.20, 126,519.36 and 51,388.04

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Solution

The fourth proportional to 91,674.20, 126,519.36 and 51,388.04 is: 70,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,674.20 : 126,519.36 = 51,388.04 : x
  2. Step 2: Convert to fraction form
    91,674.20/126,519.36 = 51,388.04/x
  3. Step 3: Cross multiply
    91,674.20x = 126,519.36 × 51,388.04
  4. Step 4: Simplify right side
    91,674.20x = 6,501,581,932.45
  5. Step 5: Solve for x
    x = 6,501,581,932.45/91,674.20
  6. Step 6: Final answer
    x = 70,920.52

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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.