Home / 51,761.18-71,428.05-31,651.58

Finding the Fourth Proportional to 51,761.18, 71,428.05 and 31,651.58

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Solution

The fourth proportional to 51,761.18, 71,428.05 and 31,651.58 is: 43,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,761.18 : 71,428.05 = 31,651.58 : x
  2. Step 2: Convert to fraction form
    51,761.18/71,428.05 = 31,651.58/x
  3. Step 3: Cross multiply
    51,761.18x = 71,428.05 × 31,651.58
  4. Step 4: Simplify right side
    51,761.18x = 2,260,810,638.82
  5. Step 5: Solve for x
    x = 2,260,810,638.82/51,761.18
  6. Step 6: Final answer
    x = 43,677.73

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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.