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Finding the Fourth Proportional to 40,360, 60,540.64 and 11,176

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Solution

The fourth proportional to 40,360, 60,540.64 and 11,176 is: 16,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,360 : 60,540.64 = 11,176 : x
  2. Step 2: Convert to fraction form
    40,360/60,540.64 = 11,176/x
  3. Step 3: Cross multiply
    40,360x = 60,540.64 × 11,176
  4. Step 4: Simplify right side
    40,360x = 676,602,192.64
  5. Step 5: Solve for x
    x = 676,602,192.64/40,360
  6. Step 6: Final answer
    x = 16,764.18

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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.