Home / 67,664.32-101,509.17-20,906.26

Finding the Fourth Proportional to 67,664.32, 101,509.17 and 20,906.26

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Solution

The fourth proportional to 67,664.32, 101,509.17 and 20,906.26 is: 31,363.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,664.32 : 101,509.17 = 20,906.26 : x
  2. Step 2: Convert to fraction form
    67,664.32/101,509.17 = 20,906.26/x
  3. Step 3: Cross multiply
    67,664.32x = 101,509.17 × 20,906.26
  4. Step 4: Simplify right side
    67,664.32x = 2,122,177,100.40
  5. Step 5: Solve for x
    x = 2,122,177,100.40/67,664.32
  6. Step 6: Final answer
    x = 31,363.31

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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.