Home / 81,427.61-122,137.49-22,263.41

Finding the Fourth Proportional to 81,427.61, 122,137.49 and 22,263.41

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Solution

The fourth proportional to 81,427.61, 122,137.49 and 22,263.41 is: 33,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.61 : 122,137.49 = 22,263.41 : x
  2. Step 2: Convert to fraction form
    81,427.61/122,137.49 = 22,263.41/x
  3. Step 3: Cross multiply
    81,427.61x = 122,137.49 × 22,263.41
  4. Step 4: Simplify right side
    81,427.61x = 2,719,197,377.24
  5. Step 5: Solve for x
    x = 2,719,197,377.24/81,427.61
  6. Step 6: Final answer
    x = 33,394.05

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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.