Home / 67,672.56-93,366.66-39,372.78

Finding the Fourth Proportional to 67,672.56, 93,366.66 and 39,372.78

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Solution

The fourth proportional to 67,672.56, 93,366.66 and 39,372.78 is: 54,321.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,672.56 : 93,366.66 = 39,372.78 : x
  2. Step 2: Convert to fraction form
    67,672.56/93,366.66 = 39,372.78/x
  3. Step 3: Cross multiply
    67,672.56x = 93,366.66 × 39,372.78
  4. Step 4: Simplify right side
    67,672.56x = 3,676,104,963.51
  5. Step 5: Solve for x
    x = 3,676,104,963.51/67,672.56
  6. Step 6: Final answer
    x = 54,321.94

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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.