Home / 68,755.18-94,886.54-38,131.78

Finding the Fourth Proportional to 68,755.18, 94,886.54 and 38,131.78

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Solution

The fourth proportional to 68,755.18, 94,886.54 and 38,131.78 is: 52,624.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,755.18 : 94,886.54 = 38,131.78 : x
  2. Step 2: Convert to fraction form
    68,755.18/94,886.54 = 38,131.78/x
  3. Step 3: Cross multiply
    68,755.18x = 94,886.54 × 38,131.78
  4. Step 4: Simplify right side
    68,755.18x = 3,618,192,668.24
  5. Step 5: Solve for x
    x = 3,618,192,668.24/68,755.18
  6. Step 6: Final answer
    x = 52,624.29

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1.5x scale

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.