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Finding the Fourth Proportional to 68,754.96, 94,876.92 and 40,456.80

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Solution

The fourth proportional to 68,754.96, 94,876.92 and 40,456.80 is: 55,827.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,754.96 : 94,876.92 = 40,456.80 : x
  2. Step 2: Convert to fraction form
    68,754.96/94,876.92 = 40,456.80/x
  3. Step 3: Cross multiply
    68,754.96x = 94,876.92 × 40,456.80
  4. Step 4: Simplify right side
    68,754.96x = 3,838,416,577.06
  5. Step 5: Solve for x
    x = 3,838,416,577.06/68,754.96
  6. Step 6: Final answer
    x = 55,827.49

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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.