Home / 81,242.43-121,883.09-41,161.47

Finding the Fourth Proportional to 81,242.43, 121,883.09 and 41,161.47

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Solution

The fourth proportional to 81,242.43, 121,883.09 and 41,161.47 is: 61,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,242.43 : 121,883.09 = 41,161.47 : x
  2. Step 2: Convert to fraction form
    81,242.43/121,883.09 = 41,161.47/x
  3. Step 3: Cross multiply
    81,242.43x = 121,883.09 × 41,161.47
  4. Step 4: Simplify right side
    81,242.43x = 5,016,886,946.73
  5. Step 5: Solve for x
    x = 5,016,886,946.73/81,242.43
  6. Step 6: Final answer
    x = 61,752.05

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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.