Home / 51,872.15-71,557.70-31,693.86

Finding the Fourth Proportional to 51,872.15, 71,557.70 and 31,693.86

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Solution

The fourth proportional to 51,872.15, 71,557.70 and 31,693.86 is: 43,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,872.15 : 71,557.70 = 31,693.86 : x
  2. Step 2: Convert to fraction form
    51,872.15/71,557.70 = 31,693.86/x
  3. Step 3: Cross multiply
    51,872.15x = 71,557.70 × 31,693.86
  4. Step 4: Simplify right side
    51,872.15x = 2,267,939,983.85
  5. Step 5: Solve for x
    x = 2,267,939,983.85/51,872.15
  6. Step 6: Final answer
    x = 43,721.73

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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.