Home / 79,868.39-119,757.62-26,531.81

Finding the Fourth Proportional to 79,868.39, 119,757.62 and 26,531.81

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Solution

The fourth proportional to 79,868.39, 119,757.62 and 26,531.81 is: 39,782.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,868.39 : 119,757.62 = 26,531.81 : x
  2. Step 2: Convert to fraction form
    79,868.39/119,757.62 = 26,531.81/x
  3. Step 3: Cross multiply
    79,868.39x = 119,757.62 × 26,531.81
  4. Step 4: Simplify right side
    79,868.39x = 3,177,386,336.52
  5. Step 5: Solve for x
    x = 3,177,386,336.52/79,868.39
  6. Step 6: Final answer
    x = 39,782.78

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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.