Home / 53,721.75-80,471.88-31,467.66

Finding the Fourth Proportional to 53,721.75, 80,471.88 and 31,467.66

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Solution

The fourth proportional to 53,721.75, 80,471.88 and 31,467.66 is: 47,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721.75 : 80,471.88 = 31,467.66 : x
  2. Step 2: Convert to fraction form
    53,721.75/80,471.88 = 31,467.66/x
  3. Step 3: Cross multiply
    53,721.75x = 80,471.88 × 31,467.66
  4. Step 4: Simplify right side
    53,721.75x = 2,532,261,199.70
  5. Step 5: Solve for x
    x = 2,532,261,199.70/53,721.75
  6. Step 6: Final answer
    x = 47,136.61

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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.