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Finding the Fourth Proportional to 40,497, 60,776.82 and 28,104

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Solution

The fourth proportional to 40,497, 60,776.82 and 28,104 is: 42,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,497 : 60,776.82 = 28,104 : x
  2. Step 2: Convert to fraction form
    40,497/60,776.82 = 28,104/x
  3. Step 3: Cross multiply
    40,497x = 60,776.82 × 28,104
  4. Step 4: Simplify right side
    40,497x = 1,708,071,749.28
  5. Step 5: Solve for x
    x = 1,708,071,749.28/40,497
  6. Step 6: Final answer
    x = 42,177.74

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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.