Home / 68,781.34-94,900.98-40,481.56

Finding the Fourth Proportional to 68,781.34, 94,900.98 and 40,481.56

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Solution

The fourth proportional to 68,781.34, 94,900.98 and 40,481.56 is: 55,854.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,781.34 : 94,900.98 = 40,481.56 : x
  2. Step 2: Convert to fraction form
    68,781.34/94,900.98 = 40,481.56/x
  3. Step 3: Cross multiply
    68,781.34x = 94,900.98 × 40,481.56
  4. Step 4: Simplify right side
    68,781.34x = 3,841,739,715.93
  5. Step 5: Solve for x
    x = 3,841,739,715.93/68,781.34
  6. Step 6: Final answer
    x = 55,854.39

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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.