Home / 51,687.26-71,336.13-31,555.81

Finding the Fourth Proportional to 51,687.26, 71,336.13 and 31,555.81

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Solution

The fourth proportional to 51,687.26, 71,336.13 and 31,555.81 is: 43,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,687.26 : 71,336.13 = 31,555.81 : x
  2. Step 2: Convert to fraction form
    51,687.26/71,336.13 = 31,555.81/x
  3. Step 3: Cross multiply
    51,687.26x = 71,336.13 × 31,555.81
  4. Step 4: Simplify right side
    51,687.26x = 2,251,068,849.96
  5. Step 5: Solve for x
    x = 2,251,068,849.96/51,687.26
  6. Step 6: Final answer
    x = 43,551.72

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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.