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Finding the Fourth Proportional to 64,757.75, 89,375.63 and 39,268.27

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Solution

The fourth proportional to 64,757.75, 89,375.63 and 39,268.27 is: 54,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,757.75 : 89,375.63 = 39,268.27 : x
  2. Step 2: Convert to fraction form
    64,757.75/89,375.63 = 39,268.27/x
  3. Step 3: Cross multiply
    64,757.75x = 89,375.63 × 39,268.27
  4. Step 4: Simplify right side
    64,757.75x = 3,509,626,370.26
  5. Step 5: Solve for x
    x = 3,509,626,370.26/64,757.75
  6. Step 6: Final answer
    x = 54,196.24

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1.5x scale

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.