Home / 53,856.80-74,321.68-31,198.88

Finding the Fourth Proportional to 53,856.80, 74,321.68 and 31,198.88

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Solution

The fourth proportional to 53,856.80, 74,321.68 and 31,198.88 is: 43,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,856.80 : 74,321.68 = 31,198.88 : x
  2. Step 2: Convert to fraction form
    53,856.80/74,321.68 = 31,198.88/x
  3. Step 3: Cross multiply
    53,856.80x = 74,321.68 × 31,198.88
  4. Step 4: Simplify right side
    53,856.80x = 2,318,753,175.72
  5. Step 5: Solve for x
    x = 2,318,753,175.72/53,856.80
  6. Step 6: Final answer
    x = 43,054.05

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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.