Home / 68,501.44-102,713.24-40,818.88

Finding the Fourth Proportional to 68,501.44, 102,713.24 and 40,818.88

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Solution

The fourth proportional to 68,501.44, 102,713.24 and 40,818.88 is: 61,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,501.44 : 102,713.24 = 40,818.88 : x
  2. Step 2: Convert to fraction form
    68,501.44/102,713.24 = 40,818.88/x
  3. Step 3: Cross multiply
    68,501.44x = 102,713.24 × 40,818.88
  4. Step 4: Simplify right side
    68,501.44x = 4,192,639,417.97
  5. Step 5: Solve for x
    x = 4,192,639,417.97/68,501.44
  6. Step 6: Final answer
    x = 61,205.13

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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.