Home / 40,257.50-60,399-31,403.18

Finding the Fourth Proportional to 40,257.50, 60,399 and 31,403.18

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Solution

The fourth proportional to 40,257.50, 60,399 and 31,403.18 is: 47,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,257.50 : 60,399 = 31,403.18 : x
  2. Step 2: Convert to fraction form
    40,257.50/60,399 = 31,403.18/x
  3. Step 3: Cross multiply
    40,257.50x = 60,399 × 31,403.18
  4. Step 4: Simplify right side
    40,257.50x = 1,896,720,819.82
  5. Step 5: Solve for x
    x = 1,896,720,819.82/40,257.50
  6. Step 6: Final answer
    x = 47,114.73

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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.