Home / 53,617.08-80,439.12-31,449

Finding the Fourth Proportional to 53,617.08, 80,439.12 and 31,449

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Solution

The fourth proportional to 53,617.08, 80,439.12 and 31,449 is: 47,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,617.08 : 80,439.12 = 31,449 : x
  2. Step 2: Convert to fraction form
    53,617.08/80,439.12 = 31,449/x
  3. Step 3: Cross multiply
    53,617.08x = 80,439.12 × 31,449
  4. Step 4: Simplify right side
    53,617.08x = 2,529,729,884.88
  5. Step 5: Solve for x
    x = 2,529,729,884.88/53,617.08
  6. Step 6: Final answer
    x = 47,181.42

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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.