Home / 65,919.48-90,968.94-36,111.48

Finding the Fourth Proportional to 65,919.48, 90,968.94 and 36,111.48

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Solution

The fourth proportional to 65,919.48, 90,968.94 and 36,111.48 is: 49,833.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,919.48 : 90,968.94 = 36,111.48 : x
  2. Step 2: Convert to fraction form
    65,919.48/90,968.94 = 36,111.48/x
  3. Step 3: Cross multiply
    65,919.48x = 90,968.94 × 36,111.48
  4. Step 4: Simplify right side
    65,919.48x = 3,285,023,057.43
  5. Step 5: Solve for x
    x = 3,285,023,057.43/65,919.48
  6. Step 6: Final answer
    x = 49,833.87

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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.