Home / 67,174.48-100,776.28-20,426.12

Finding the Fourth Proportional to 67,174.48, 100,776.28 and 20,426.12

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Solution

The fourth proportional to 67,174.48, 100,776.28 and 20,426.12 is: 30,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,174.48 : 100,776.28 = 20,426.12 : x
  2. Step 2: Convert to fraction form
    67,174.48/100,776.28 = 20,426.12/x
  3. Step 3: Cross multiply
    67,174.48x = 100,776.28 × 20,426.12
  4. Step 4: Simplify right side
    67,174.48x = 2,058,468,388.43
  5. Step 5: Solve for x
    x = 2,058,468,388.43/67,174.48
  6. Step 6: Final answer
    x = 30,643.61

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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.