Home / 81,447.34-122,178.30-22,283.32

Finding the Fourth Proportional to 81,447.34, 122,178.30 and 22,283.32

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Solution

The fourth proportional to 81,447.34, 122,178.30 and 22,283.32 is: 33,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,447.34 : 122,178.30 = 22,283.32 : x
  2. Step 2: Convert to fraction form
    81,447.34/122,178.30 = 22,283.32/x
  3. Step 3: Cross multiply
    81,447.34x = 122,178.30 × 22,283.32
  4. Step 4: Simplify right side
    81,447.34x = 2,722,538,155.96
  5. Step 5: Solve for x
    x = 2,722,538,155.96/81,447.34
  6. Step 6: Final answer
    x = 33,426.97

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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.