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Finding the Fourth Proportional to 68,759.40, 94,894.70 and 38,544.78

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Solution

The fourth proportional to 68,759.40, 94,894.70 and 38,544.78 is: 53,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,759.40 : 94,894.70 = 38,544.78 : x
  2. Step 2: Convert to fraction form
    68,759.40/94,894.70 = 38,544.78/x
  3. Step 3: Cross multiply
    68,759.40x = 94,894.70 × 38,544.78
  4. Step 4: Simplify right side
    68,759.40x = 3,657,695,334.67
  5. Step 5: Solve for x
    x = 3,657,695,334.67/68,759.40
  6. Step 6: Final answer
    x = 53,195.57

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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.