Home / 81,678.41-122,523.77-22,513.57

Finding the Fourth Proportional to 81,678.41, 122,523.77 and 22,513.57

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Solution

The fourth proportional to 81,678.41, 122,523.77 and 22,513.57 is: 33,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,678.41 : 122,523.77 = 22,513.57 : x
  2. Step 2: Convert to fraction form
    81,678.41/122,523.77 = 22,513.57/x
  3. Step 3: Cross multiply
    81,678.41x = 122,523.77 × 22,513.57
  4. Step 4: Simplify right side
    81,678.41x = 2,758,447,519.64
  5. Step 5: Solve for x
    x = 2,758,447,519.64/81,678.41
  6. Step 6: Final answer
    x = 33,772.05

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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.