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Finding the Fourth Proportional to 40,156, 60,235.44 and 12,453.28

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Solution

The fourth proportional to 40,156, 60,235.44 and 12,453.28 is: 18,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,156 : 60,235.44 = 12,453.28 : x
  2. Step 2: Convert to fraction form
    40,156/60,235.44 = 12,453.28/x
  3. Step 3: Cross multiply
    40,156x = 60,235.44 × 12,453.28
  4. Step 4: Simplify right side
    40,156x = 750,128,800.24
  5. Step 5: Solve for x
    x = 750,128,800.24/40,156
  6. Step 6: Final answer
    x = 18,680.37

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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.