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Finding the Fourth Proportional to 64,301.57, 96,600.18 and 45,369.78

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Solution

The fourth proportional to 64,301.57, 96,600.18 and 45,369.78 is: 68,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,301.57 : 96,600.18 = 45,369.78 : x
  2. Step 2: Convert to fraction form
    64,301.57/96,600.18 = 45,369.78/x
  3. Step 3: Cross multiply
    64,301.57x = 96,600.18 × 45,369.78
  4. Step 4: Simplify right side
    64,301.57x = 4,382,728,914.56
  5. Step 5: Solve for x
    x = 4,382,728,914.56/64,301.57
  6. Step 6: Final answer
    x = 68,158.97

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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.