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Finding the Fourth Proportional to 80,468.64, 120,664.08 and 33,708.96

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Solution

The fourth proportional to 80,468.64, 120,664.08 and 33,708.96 is: 50,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,468.64 : 120,664.08 = 33,708.96 : x
  2. Step 2: Convert to fraction form
    80,468.64/120,664.08 = 33,708.96/x
  3. Step 3: Cross multiply
    80,468.64x = 120,664.08 × 33,708.96
  4. Step 4: Simplify right side
    80,468.64x = 4,067,460,646.16
  5. Step 5: Solve for x
    x = 4,067,460,646.16/80,468.64
  6. Step 6: Final answer
    x = 50,547.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.