Home / 79,221.38-109,325.57-43,411.55

Finding the Fourth Proportional to 79,221.38, 109,325.57 and 43,411.55

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Solution

The fourth proportional to 79,221.38, 109,325.57 and 43,411.55 is: 59,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,221.38 : 109,325.57 = 43,411.55 : x
  2. Step 2: Convert to fraction form
    79,221.38/109,325.57 = 43,411.55/x
  3. Step 3: Cross multiply
    79,221.38x = 109,325.57 × 43,411.55
  4. Step 4: Simplify right side
    79,221.38x = 4,745,991,684.65
  5. Step 5: Solve for x
    x = 4,745,991,684.65/79,221.38
  6. Step 6: Final answer
    x = 59,907.97

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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.