Home / 65,228.43-90,015.57-36,939.63

Finding the Fourth Proportional to 65,228.43, 90,015.57 and 36,939.63

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Solution

The fourth proportional to 65,228.43, 90,015.57 and 36,939.63 is: 50,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,228.43 : 90,015.57 = 36,939.63 : x
  2. Step 2: Convert to fraction form
    65,228.43/90,015.57 = 36,939.63/x
  3. Step 3: Cross multiply
    65,228.43x = 90,015.57 × 36,939.63
  4. Step 4: Simplify right side
    65,228.43x = 3,325,141,850.04
  5. Step 5: Solve for x
    x = 3,325,141,850.04/65,228.43
  6. Step 6: Final answer
    x = 50,976.88

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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.