Home / 79,351.47-109,455.17-55,469.43

Finding the Fourth Proportional to 79,351.47, 109,455.17 and 55,469.43

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Solution

The fourth proportional to 79,351.47, 109,455.17 and 55,469.43 is: 76,512.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,351.47 : 109,455.17 = 55,469.43 : x
  2. Step 2: Convert to fraction form
    79,351.47/109,455.17 = 55,469.43/x
  3. Step 3: Cross multiply
    79,351.47x = 109,455.17 × 55,469.43
  4. Step 4: Simplify right side
    79,351.47x = 6,071,415,613.11
  5. Step 5: Solve for x
    x = 6,071,415,613.11/79,351.47
  6. Step 6: Final answer
    x = 76,512.96

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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.