Home / 83,771.20-125,678.67-43,792.84

Finding the Fourth Proportional to 83,771.20, 125,678.67 and 43,792.84

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Solution

The fourth proportional to 83,771.20, 125,678.67 and 43,792.84 is: 65,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.20 : 125,678.67 = 43,792.84 : x
  2. Step 2: Convert to fraction form
    83,771.20/125,678.67 = 43,792.84/x
  3. Step 3: Cross multiply
    83,771.20x = 125,678.67 × 43,792.84
  4. Step 4: Simplify right side
    83,771.20x = 5,503,825,886.72
  5. Step 5: Solve for x
    x = 5,503,825,886.72/83,771.20
  6. Step 6: Final answer
    x = 65,700.69

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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.