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Finding the Fourth Proportional to 68,377.55, 94,365.75 and 38,168.75

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Solution

The fourth proportional to 68,377.55, 94,365.75 and 38,168.75 is: 52,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,377.55 : 94,365.75 = 38,168.75 : x
  2. Step 2: Convert to fraction form
    68,377.55/94,365.75 = 38,168.75/x
  3. Step 3: Cross multiply
    68,377.55x = 94,365.75 × 38,168.75
  4. Step 4: Simplify right side
    68,377.55x = 3,601,822,529.47
  5. Step 5: Solve for x
    x = 3,601,822,529.47/68,377.55
  6. Step 6: Final answer
    x = 52,675.51

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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.