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Finding the Fourth Proportional to 80,319.12, 110,829.90 and 44,507.40

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Solution

The fourth proportional to 80,319.12, 110,829.90 and 44,507.40 is: 61,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,319.12 : 110,829.90 = 44,507.40 : x
  2. Step 2: Convert to fraction form
    80,319.12/110,829.90 = 44,507.40/x
  3. Step 3: Cross multiply
    80,319.12x = 110,829.90 × 44,507.40
  4. Step 4: Simplify right side
    80,319.12x = 4,932,750,691.26
  5. Step 5: Solve for x
    x = 4,932,750,691.26/80,319.12
  6. Step 6: Final answer
    x = 61,414.40

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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.