Home / 40,539.74-60,789.20-13,512.51

Finding the Fourth Proportional to 40,539.74, 60,789.20 and 13,512.51

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Solution

The fourth proportional to 40,539.74, 60,789.20 and 13,512.51 is: 20,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,539.74 : 60,789.20 = 13,512.51 : x
  2. Step 2: Convert to fraction form
    40,539.74/60,789.20 = 13,512.51/x
  3. Step 3: Cross multiply
    40,539.74x = 60,789.20 × 13,512.51
  4. Step 4: Simplify right side
    40,539.74x = 821,414,630.67
  5. Step 5: Solve for x
    x = 821,414,630.67/40,539.74
  6. Step 6: Final answer
    x = 20,261.96

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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.