Home / 68,977.64-95,215.16-40,306.62

Finding the Fourth Proportional to 68,977.64, 95,215.16 and 40,306.62

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Solution

The fourth proportional to 68,977.64, 95,215.16 and 40,306.62 is: 55,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,977.64 : 95,215.16 = 40,306.62 : x
  2. Step 2: Convert to fraction form
    68,977.64/95,215.16 = 40,306.62/x
  3. Step 3: Cross multiply
    68,977.64x = 95,215.16 × 40,306.62
  4. Step 4: Simplify right side
    68,977.64x = 3,837,800,967.87
  5. Step 5: Solve for x
    x = 3,837,800,967.87/68,977.64
  6. Step 6: Final answer
    x = 55,638.33

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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.