Home / 80,541.63-120,781.68-26,493.75

Finding the Fourth Proportional to 80,541.63, 120,781.68 and 26,493.75

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Solution

The fourth proportional to 80,541.63, 120,781.68 and 26,493.75 is: 39,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.63 : 120,781.68 = 26,493.75 : x
  2. Step 2: Convert to fraction form
    80,541.63/120,781.68 = 26,493.75/x
  3. Step 3: Cross multiply
    80,541.63x = 120,781.68 × 26,493.75
  4. Step 4: Simplify right side
    80,541.63x = 3,199,959,634.50
  5. Step 5: Solve for x
    x = 3,199,959,634.50/80,541.63
  6. Step 6: Final answer
    x = 39,730.51

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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.