Home / 90,335.64-135,481.68-37,716.60

Finding the Fourth Proportional to 90,335.64, 135,481.68 and 37,716.60

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Solution

The fourth proportional to 90,335.64, 135,481.68 and 37,716.60 is: 56,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,335.64 : 135,481.68 = 37,716.60 : x
  2. Step 2: Convert to fraction form
    90,335.64/135,481.68 = 37,716.60/x
  3. Step 3: Cross multiply
    90,335.64x = 135,481.68 × 37,716.60
  4. Step 4: Simplify right side
    90,335.64x = 5,109,908,331.89
  5. Step 5: Solve for x
    x = 5,109,908,331.89/90,335.64
  6. Step 6: Final answer
    x = 56,565.81

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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.