Home / 79,042.13-109,080.27-47,229.48

Finding the Fourth Proportional to 79,042.13, 109,080.27 and 47,229.48

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Solution

The fourth proportional to 79,042.13, 109,080.27 and 47,229.48 is: 65,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.13 : 109,080.27 = 47,229.48 : x
  2. Step 2: Convert to fraction form
    79,042.13/109,080.27 = 47,229.48/x
  3. Step 3: Cross multiply
    79,042.13x = 109,080.27 × 47,229.48
  4. Step 4: Simplify right side
    79,042.13x = 5,151,804,430.36
  5. Step 5: Solve for x
    x = 5,151,804,430.36/79,042.13
  6. Step 6: Final answer
    x = 65,177.96

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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.