Home / 80,402.57-110,864.66-51,292.11

Finding the Fourth Proportional to 80,402.57, 110,864.66 and 51,292.11

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Solution

The fourth proportional to 80,402.57, 110,864.66 and 51,292.11 is: 70,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,402.57 : 110,864.66 = 51,292.11 : x
  2. Step 2: Convert to fraction form
    80,402.57/110,864.66 = 51,292.11/x
  3. Step 3: Cross multiply
    80,402.57x = 110,864.66 × 51,292.11
  4. Step 4: Simplify right side
    80,402.57x = 5,686,482,335.83
  5. Step 5: Solve for x
    x = 5,686,482,335.83/80,402.57
  6. Step 6: Final answer
    x = 70,725.13

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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.