Home / 91,581.32-126,337.62-57,631.88

Finding the Fourth Proportional to 91,581.32, 126,337.62 and 57,631.88

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Solution

The fourth proportional to 91,581.32, 126,337.62 and 57,631.88 is: 79,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,581.32 : 126,337.62 = 57,631.88 : x
  2. Step 2: Convert to fraction form
    91,581.32/126,337.62 = 57,631.88/x
  3. Step 3: Cross multiply
    91,581.32x = 126,337.62 × 57,631.88
  4. Step 4: Simplify right side
    91,581.32x = 7,281,074,555.33
  5. Step 5: Solve for x
    x = 7,281,074,555.33/91,581.32
  6. Step 6: Final answer
    x = 79,503.93

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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.