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Finding the Fourth Proportional to 68,992.68, 95,192.34 and 42,125.40

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Solution

The fourth proportional to 68,992.68, 95,192.34 and 42,125.40 is: 58,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.68 : 95,192.34 = 42,125.40 : x
  2. Step 2: Convert to fraction form
    68,992.68/95,192.34 = 42,125.40/x
  3. Step 3: Cross multiply
    68,992.68x = 95,192.34 × 42,125.40
  4. Step 4: Simplify right side
    68,992.68x = 4,010,015,399.44
  5. Step 5: Solve for x
    x = 4,010,015,399.44/68,992.68
  6. Step 6: Final answer
    x = 58,122.33

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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.