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Finding the Fourth Proportional to 68,878.34, 95,058.62 and 40,195.68

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Solution

The fourth proportional to 68,878.34, 95,058.62 and 40,195.68 is: 55,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,878.34 : 95,058.62 = 40,195.68 : x
  2. Step 2: Convert to fraction form
    68,878.34/95,058.62 = 40,195.68/x
  3. Step 3: Cross multiply
    68,878.34x = 95,058.62 × 40,195.68
  4. Step 4: Simplify right side
    68,878.34x = 3,820,945,870.76
  5. Step 5: Solve for x
    x = 3,820,945,870.76/68,878.34
  6. Step 6: Final answer
    x = 55,473.84

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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.