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Finding the Fourth Proportional to 71,149.71, 98,183.84 and 40,944.72

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Solution

The fourth proportional to 71,149.71, 98,183.84 and 40,944.72 is: 56,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.71 : 98,183.84 = 40,944.72 : x
  2. Step 2: Convert to fraction form
    71,149.71/98,183.84 = 40,944.72/x
  3. Step 3: Cross multiply
    71,149.71x = 98,183.84 × 40,944.72
  4. Step 4: Simplify right side
    71,149.71x = 4,020,109,837.32
  5. Step 5: Solve for x
    x = 4,020,109,837.32/71,149.71
  6. Step 6: Final answer
    x = 56,502.13

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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.