Home / 65,674.33-90,613.89-40,171.41

Finding the Fourth Proportional to 65,674.33, 90,613.89 and 40,171.41

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Solution

The fourth proportional to 65,674.33, 90,613.89 and 40,171.41 is: 55,426.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,674.33 : 90,613.89 = 40,171.41 : x
  2. Step 2: Convert to fraction form
    65,674.33/90,613.89 = 40,171.41/x
  3. Step 3: Cross multiply
    65,674.33x = 90,613.89 × 40,171.41
  4. Step 4: Simplify right side
    65,674.33x = 3,640,087,726.88
  5. Step 5: Solve for x
    x = 3,640,087,726.88/65,674.33
  6. Step 6: Final answer
    x = 55,426.34

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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.