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Finding the Fourth Proportional to 68,879.32, 103,318.98 and 27,326.32

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Solution

The fourth proportional to 68,879.32, 103,318.98 and 27,326.32 is: 40,989.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,879.32 : 103,318.98 = 27,326.32 : x
  2. Step 2: Convert to fraction form
    68,879.32/103,318.98 = 27,326.32/x
  3. Step 3: Cross multiply
    68,879.32x = 103,318.98 × 27,326.32
  4. Step 4: Simplify right side
    68,879.32x = 2,823,327,509.55
  5. Step 5: Solve for x
    x = 2,823,327,509.55/68,879.32
  6. Step 6: Final answer
    x = 40,989.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.