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Finding the Fourth Proportional to 40,794, 61,197.48 and 18,607.20

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Solution

The fourth proportional to 40,794, 61,197.48 and 18,607.20 is: 27,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,794 : 61,197.48 = 18,607.20 : x
  2. Step 2: Convert to fraction form
    40,794/61,197.48 = 18,607.20/x
  3. Step 3: Cross multiply
    40,794x = 61,197.48 × 18,607.20
  4. Step 4: Simplify right side
    40,794x = 1,138,713,749.86
  5. Step 5: Solve for x
    x = 1,138,713,749.86/40,794
  6. Step 6: Final answer
    x = 27,913.76

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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.