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Finding the Fourth Proportional to 68,409.85, 94,404.67 and 38,195.63

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Solution

The fourth proportional to 68,409.85, 94,404.67 and 38,195.63 is: 52,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,409.85 : 94,404.67 = 38,195.63 : x
  2. Step 2: Convert to fraction form
    68,409.85/94,404.67 = 38,195.63/x
  3. Step 3: Cross multiply
    68,409.85x = 94,404.67 × 38,195.63
  4. Step 4: Simplify right side
    68,409.85x = 3,605,845,654.61
  5. Step 5: Solve for x
    x = 3,605,845,654.61/68,409.85
  6. Step 6: Final answer
    x = 52,709.46

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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.