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Finding the Fourth Proportional to 40,402.53, 60,536.97 and 20,653.92

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Solution

The fourth proportional to 40,402.53, 60,536.97 and 20,653.92 is: 30,946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.53 : 60,536.97 = 20,653.92 : x
  2. Step 2: Convert to fraction form
    40,402.53/60,536.97 = 20,653.92/x
  3. Step 3: Cross multiply
    40,402.53x = 60,536.97 × 20,653.92
  4. Step 4: Simplify right side
    40,402.53x = 1,250,325,735.42
  5. Step 5: Solve for x
    x = 1,250,325,735.42/40,402.53
  6. Step 6: Final answer
    x = 30,946.72

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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.