Home / 81,741.29-122,497.74-39,610.20

Finding the Fourth Proportional to 81,741.29, 122,497.74 and 39,610.20

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Solution

The fourth proportional to 81,741.29, 122,497.74 and 39,610.20 is: 59,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,741.29 : 122,497.74 = 39,610.20 : x
  2. Step 2: Convert to fraction form
    81,741.29/122,497.74 = 39,610.20/x
  3. Step 3: Cross multiply
    81,741.29x = 122,497.74 × 39,610.20
  4. Step 4: Simplify right side
    81,741.29x = 4,852,159,604.27
  5. Step 5: Solve for x
    x = 4,852,159,604.27/81,741.29
  6. Step 6: Final answer
    x = 59,359.96

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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.