Home / 74,272.80-111,377.88-31,560.96

Finding the Fourth Proportional to 74,272.80, 111,377.88 and 31,560.96

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Solution

The fourth proportional to 74,272.80, 111,377.88 and 31,560.96 is: 47,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.80 : 111,377.88 = 31,560.96 : x
  2. Step 2: Convert to fraction form
    74,272.80/111,377.88 = 31,560.96/x
  3. Step 3: Cross multiply
    74,272.80x = 111,377.88 × 31,560.96
  4. Step 4: Simplify right side
    74,272.80x = 3,515,192,815.56
  5. Step 5: Solve for x
    x = 3,515,192,815.56/74,272.80
  6. Step 6: Final answer
    x = 47,328.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.