Home / 40,811.66-61,213.17-13,107.50

Finding the Fourth Proportional to 40,811.66, 61,213.17 and 13,107.50

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Solution

The fourth proportional to 40,811.66, 61,213.17 and 13,107.50 is: 19,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.66 : 61,213.17 = 13,107.50 : x
  2. Step 2: Convert to fraction form
    40,811.66/61,213.17 = 13,107.50/x
  3. Step 3: Cross multiply
    40,811.66x = 61,213.17 × 13,107.50
  4. Step 4: Simplify right side
    40,811.66x = 802,351,625.78
  5. Step 5: Solve for x
    x = 802,351,625.78/40,811.66
  6. Step 6: Final answer
    x = 19,659.86

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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.