Home / 78,790.20-108,767.25-50,512.02

Finding the Fourth Proportional to 78,790.20, 108,767.25 and 50,512.02

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Solution

The fourth proportional to 78,790.20, 108,767.25 and 50,512.02 is: 69,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,790.20 : 108,767.25 = 50,512.02 : x
  2. Step 2: Convert to fraction form
    78,790.20/108,767.25 = 50,512.02/x
  3. Step 3: Cross multiply
    78,790.20x = 108,767.25 × 50,512.02
  4. Step 4: Simplify right side
    78,790.20x = 5,494,053,507.35
  5. Step 5: Solve for x
    x = 5,494,053,507.35/78,790.20
  6. Step 6: Final answer
    x = 69,730.16

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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.