Home / 84,367.49-126,551.18-77,327.71

Finding the Fourth Proportional to 84,367.49, 126,551.18 and 77,327.71

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Solution

The fourth proportional to 84,367.49, 126,551.18 and 77,327.71 is: 115,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,367.49 : 126,551.18 = 77,327.71 : x
  2. Step 2: Convert to fraction form
    84,367.49/126,551.18 = 77,327.71/x
  3. Step 3: Cross multiply
    84,367.49x = 126,551.18 × 77,327.71
  4. Step 4: Simplify right side
    84,367.49x = 9,785,912,824.14
  5. Step 5: Solve for x
    x = 9,785,912,824.14/84,367.49
  6. Step 6: Final answer
    x = 115,991.52

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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.