Home / 51,084.11-70,494.28-28,111.78

Finding the Fourth Proportional to 51,084.11, 70,494.28 and 28,111.78

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Solution

The fourth proportional to 51,084.11, 70,494.28 and 28,111.78 is: 38,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,084.11 : 70,494.28 = 28,111.78 : x
  2. Step 2: Convert to fraction form
    51,084.11/70,494.28 = 28,111.78/x
  3. Step 3: Cross multiply
    51,084.11x = 70,494.28 × 28,111.78
  4. Step 4: Simplify right side
    51,084.11x = 1,981,719,690.62
  5. Step 5: Solve for x
    x = 1,981,719,690.62/51,084.11
  6. Step 6: Final answer
    x = 38,793.27

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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.