Home / 51,796.64-71,476.96-31,687.20

Finding the Fourth Proportional to 51,796.64, 71,476.96 and 31,687.20

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Solution

The fourth proportional to 51,796.64, 71,476.96 and 31,687.20 is: 43,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,796.64 : 71,476.96 = 31,687.20 : x
  2. Step 2: Convert to fraction form
    51,796.64/71,476.96 = 31,687.20/x
  3. Step 3: Cross multiply
    51,796.64x = 71,476.96 × 31,687.20
  4. Step 4: Simplify right side
    51,796.64x = 2,264,904,726.91
  5. Step 5: Solve for x
    x = 2,264,904,726.91/51,796.64
  6. Step 6: Final answer
    x = 43,726.87

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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.