Home / 81,374.05-122,078.51-25,212.92

Finding the Fourth Proportional to 81,374.05, 122,078.51 and 25,212.92

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Solution

The fourth proportional to 81,374.05, 122,078.51 and 25,212.92 is: 37,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.05 : 122,078.51 = 25,212.92 : x
  2. Step 2: Convert to fraction form
    81,374.05/122,078.51 = 25,212.92/x
  3. Step 3: Cross multiply
    81,374.05x = 122,078.51 × 25,212.92
  4. Step 4: Simplify right side
    81,374.05x = 3,077,955,706.35
  5. Step 5: Solve for x
    x = 3,077,955,706.35/81,374.05
  6. Step 6: Final answer
    x = 37,824.78

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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.