Home / 68,429.95-94,432.38-39,765.80

Finding the Fourth Proportional to 68,429.95, 94,432.38 and 39,765.80

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Solution

The fourth proportional to 68,429.95, 94,432.38 and 39,765.80 is: 54,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,429.95 : 94,432.38 = 39,765.80 : x
  2. Step 2: Convert to fraction form
    68,429.95/94,432.38 = 39,765.80/x
  3. Step 3: Cross multiply
    68,429.95x = 94,432.38 × 39,765.80
  4. Step 4: Simplify right side
    68,429.95x = 3,755,179,223.56
  5. Step 5: Solve for x
    x = 3,755,179,223.56/68,429.95
  6. Step 6: Final answer
    x = 54,876.25

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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.