Home / 79,452.03-109,640.85-43,639.91

Finding the Fourth Proportional to 79,452.03, 109,640.85 and 43,639.91

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Solution

The fourth proportional to 79,452.03, 109,640.85 and 43,639.91 is: 60,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,452.03 : 109,640.85 = 43,639.91 : x
  2. Step 2: Convert to fraction form
    79,452.03/109,640.85 = 43,639.91/x
  3. Step 3: Cross multiply
    79,452.03x = 109,640.85 × 43,639.91
  4. Step 4: Simplify right side
    79,452.03x = 4,784,716,278.12
  5. Step 5: Solve for x
    x = 4,784,716,278.12/79,452.03
  6. Step 6: Final answer
    x = 60,221.45

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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.