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Finding the Fourth Proportional to 64,765.56, 89,360.91 and 36,471.24

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Solution

The fourth proportional to 64,765.56, 89,360.91 and 36,471.24 is: 50,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,765.56 : 89,360.91 = 36,471.24 : x
  2. Step 2: Convert to fraction form
    64,765.56/89,360.91 = 36,471.24/x
  3. Step 3: Cross multiply
    64,765.56x = 89,360.91 × 36,471.24
  4. Step 4: Simplify right side
    64,765.56x = 3,259,103,195.23
  5. Step 5: Solve for x
    x = 3,259,103,195.23/64,765.56
  6. Step 6: Final answer
    x = 50,321.55

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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.