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Finding the Fourth Proportional to 79,851.80, 110,200.84 and 45,871.28

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Solution

The fourth proportional to 79,851.80, 110,200.84 and 45,871.28 is: 63,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,851.80 : 110,200.84 = 45,871.28 : x
  2. Step 2: Convert to fraction form
    79,851.80/110,200.84 = 45,871.28/x
  3. Step 3: Cross multiply
    79,851.80x = 110,200.84 × 45,871.28
  4. Step 4: Simplify right side
    79,851.80x = 5,055,053,587.88
  5. Step 5: Solve for x
    x = 5,055,053,587.88/79,851.80
  6. Step 6: Final answer
    x = 63,305.44

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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.