Home / 79,512.74-109,728.42-43,214.18

Finding the Fourth Proportional to 79,512.74, 109,728.42 and 43,214.18

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Solution

The fourth proportional to 79,512.74, 109,728.42 and 43,214.18 is: 59,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,512.74 : 109,728.42 = 43,214.18 : x
  2. Step 2: Convert to fraction form
    79,512.74/109,728.42 = 43,214.18/x
  3. Step 3: Cross multiply
    79,512.74x = 109,728.42 × 43,214.18
  4. Step 4: Simplify right side
    79,512.74x = 4,741,823,144.35
  5. Step 5: Solve for x
    x = 4,741,823,144.35/79,512.74
  6. Step 6: Final answer
    x = 59,636.02

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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.