Home / 51,669.20-71,311.28-31,537.78

Finding the Fourth Proportional to 51,669.20, 71,311.28 and 31,537.78

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Solution

The fourth proportional to 51,669.20, 71,311.28 and 31,537.78 is: 43,526.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,669.20 : 71,311.28 = 31,537.78 : x
  2. Step 2: Convert to fraction form
    51,669.20/71,311.28 = 31,537.78/x
  3. Step 3: Cross multiply
    51,669.20x = 71,311.28 × 31,537.78
  4. Step 4: Simplify right side
    51,669.20x = 2,248,999,317.27
  5. Step 5: Solve for x
    x = 2,248,999,317.27/51,669.20
  6. Step 6: Final answer
    x = 43,526.89

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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.