Home / 81,552.71-122,213.31-34,116.68

Finding the Fourth Proportional to 81,552.71, 122,213.31 and 34,116.68

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Solution

The fourth proportional to 81,552.71, 122,213.31 and 34,116.68 is: 51,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,552.71 : 122,213.31 = 34,116.68 : x
  2. Step 2: Convert to fraction form
    81,552.71/122,213.31 = 34,116.68/x
  3. Step 3: Cross multiply
    81,552.71x = 122,213.31 × 34,116.68
  4. Step 4: Simplify right side
    81,552.71x = 4,169,511,777.94
  5. Step 5: Solve for x
    x = 4,169,511,777.94/81,552.71
  6. Step 6: Final answer
    x = 51,126.59

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1.5x scale

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.