Home / 81,091.32-121,648.62-24,936.15

Finding the Fourth Proportional to 81,091.32, 121,648.62 and 24,936.15

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Solution

The fourth proportional to 81,091.32, 121,648.62 and 24,936.15 is: 37,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,091.32 : 121,648.62 = 24,936.15 : x
  2. Step 2: Convert to fraction form
    81,091.32/121,648.62 = 24,936.15/x
  3. Step 3: Cross multiply
    81,091.32x = 121,648.62 × 24,936.15
  4. Step 4: Simplify right side
    81,091.32x = 3,033,448,235.61
  5. Step 5: Solve for x
    x = 3,033,448,235.61/81,091.32
  6. Step 6: Final answer
    x = 37,407.80

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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.