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Finding the Fourth Proportional to 80,200.12, 110,672.20 and 45,746.20

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Solution

The fourth proportional to 80,200.12, 110,672.20 and 45,746.20 is: 63,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.12 : 110,672.20 = 45,746.20 : x
  2. Step 2: Convert to fraction form
    80,200.12/110,672.20 = 45,746.20/x
  3. Step 3: Cross multiply
    80,200.12x = 110,672.20 × 45,746.20
  4. Step 4: Simplify right side
    80,200.12x = 5,062,832,595.64
  5. Step 5: Solve for x
    x = 5,062,832,595.64/80,200.12
  6. Step 6: Final answer
    x = 63,127.49

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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.