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Finding the Fourth Proportional to 64,233, 88,696.26 and 40,399.56

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Solution

The fourth proportional to 64,233, 88,696.26 and 40,399.56 is: 55,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,233 : 88,696.26 = 40,399.56 : x
  2. Step 2: Convert to fraction form
    64,233/88,696.26 = 40,399.56/x
  3. Step 3: Cross multiply
    64,233x = 88,696.26 × 40,399.56
  4. Step 4: Simplify right side
    64,233x = 3,583,289,877.65
  5. Step 5: Solve for x
    x = 3,583,289,877.65/64,233
  6. Step 6: Final answer
    x = 55,785.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.