Home / 91,398.96-126,132.24-55,590.48

Finding the Fourth Proportional to 91,398.96, 126,132.24 and 55,590.48

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Solution

The fourth proportional to 91,398.96, 126,132.24 and 55,590.48 is: 76,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,398.96 : 126,132.24 = 55,590.48 : x
  2. Step 2: Convert to fraction form
    91,398.96/126,132.24 = 55,590.48/x
  3. Step 3: Cross multiply
    91,398.96x = 126,132.24 × 55,590.48
  4. Step 4: Simplify right side
    91,398.96x = 7,011,751,765.08
  5. Step 5: Solve for x
    x = 7,011,751,765.08/91,398.96
  6. Step 6: Final answer
    x = 76,715.88

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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.