Home / 79,318.20-109,464.68-45,331.70

Finding the Fourth Proportional to 79,318.20, 109,464.68 and 45,331.70

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Solution

The fourth proportional to 79,318.20, 109,464.68 and 45,331.70 is: 62,560.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,318.20 : 109,464.68 = 45,331.70 : x
  2. Step 2: Convert to fraction form
    79,318.20/109,464.68 = 45,331.70/x
  3. Step 3: Cross multiply
    79,318.20x = 109,464.68 × 45,331.70
  4. Step 4: Simplify right side
    79,318.20x = 4,962,220,034.36
  5. Step 5: Solve for x
    x = 4,962,220,034.36/79,318.20
  6. Step 6: Final answer
    x = 62,560.93

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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.