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Finding the Fourth Proportional to 75,027.33, 112,669.92 and 66,612.78

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Solution

The fourth proportional to 75,027.33, 112,669.92 and 66,612.78 is: 100,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,027.33 : 112,669.92 = 66,612.78 : x
  2. Step 2: Convert to fraction form
    75,027.33/112,669.92 = 66,612.78/x
  3. Step 3: Cross multiply
    75,027.33x = 112,669.92 × 66,612.78
  4. Step 4: Simplify right side
    75,027.33x = 7,505,256,593.58
  5. Step 5: Solve for x
    x = 7,505,256,593.58/75,027.33
  6. Step 6: Final answer
    x = 100,033.64

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1.5x scale

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.