Home / 64,120.38-96,182.21-30,378.49

Finding the Fourth Proportional to 64,120.38, 96,182.21 and 30,378.49

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Solution

The fourth proportional to 64,120.38, 96,182.21 and 30,378.49 is: 45,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120.38 : 96,182.21 = 30,378.49 : x
  2. Step 2: Convert to fraction form
    64,120.38/96,182.21 = 30,378.49/x
  3. Step 3: Cross multiply
    64,120.38x = 96,182.21 × 30,378.49
  4. Step 4: Simplify right side
    64,120.38x = 2,921,870,304.66
  5. Step 5: Solve for x
    x = 2,921,870,304.66/64,120.38
  6. Step 6: Final answer
    x = 45,568.51

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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.