Home / 56,286.23-77,631.72-39,285.05

Finding the Fourth Proportional to 56,286.23, 77,631.72 and 39,285.05

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Solution

The fourth proportional to 56,286.23, 77,631.72 and 39,285.05 is: 54,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.23 : 77,631.72 = 39,285.05 : x
  2. Step 2: Convert to fraction form
    56,286.23/77,631.72 = 39,285.05/x
  3. Step 3: Cross multiply
    56,286.23x = 77,631.72 × 39,285.05
  4. Step 4: Simplify right side
    56,286.23x = 3,049,766,001.79
  5. Step 5: Solve for x
    x = 3,049,766,001.79/56,286.23
  6. Step 6: Final answer
    x = 54,183.16

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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.