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Finding the Fourth Proportional to 80,802, 121,216.13 and 23,881.68

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Solution

The fourth proportional to 80,802, 121,216.13 and 23,881.68 is: 35,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,802 : 121,216.13 = 23,881.68 : x
  2. Step 2: Convert to fraction form
    80,802/121,216.13 = 23,881.68/x
  3. Step 3: Cross multiply
    80,802x = 121,216.13 × 23,881.68
  4. Step 4: Simplify right side
    80,802x = 2,894,844,827.50
  5. Step 5: Solve for x
    x = 2,894,844,827.50/80,802
  6. Step 6: Final answer
    x = 35,826.40

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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.