Home / 51,196.40-76,621.20-31,487.44

Finding the Fourth Proportional to 51,196.40, 76,621.20 and 31,487.44

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Solution

The fourth proportional to 51,196.40, 76,621.20 and 31,487.44 is: 47,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,196.40 : 76,621.20 = 31,487.44 : x
  2. Step 2: Convert to fraction form
    51,196.40/76,621.20 = 31,487.44/x
  3. Step 3: Cross multiply
    51,196.40x = 76,621.20 × 31,487.44
  4. Step 4: Simplify right side
    51,196.40x = 2,412,605,437.73
  5. Step 5: Solve for x
    x = 2,412,605,437.73/51,196.40
  6. Step 6: Final answer
    x = 47,124.51

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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.