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Finding the Fourth Proportional to 40,178.01, 55,441.92 and 22,271.49

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Solution

The fourth proportional to 40,178.01, 55,441.92 and 22,271.49 is: 30,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,178.01 : 55,441.92 = 22,271.49 : x
  2. Step 2: Convert to fraction form
    40,178.01/55,441.92 = 22,271.49/x
  3. Step 3: Cross multiply
    40,178.01x = 55,441.92 × 22,271.49
  4. Step 4: Simplify right side
    40,178.01x = 1,234,774,166.86
  5. Step 5: Solve for x
    x = 1,234,774,166.86/40,178.01
  6. Step 6: Final answer
    x = 30,732.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.