Home / 67,091.72-100,641.06-17,172.28

Finding the Fourth Proportional to 67,091.72, 100,641.06 and 17,172.28

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Solution

The fourth proportional to 67,091.72, 100,641.06 and 17,172.28 is: 25,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,091.72 : 100,641.06 = 17,172.28 : x
  2. Step 2: Convert to fraction form
    67,091.72/100,641.06 = 17,172.28/x
  3. Step 3: Cross multiply
    67,091.72x = 100,641.06 × 17,172.28
  4. Step 4: Simplify right side
    67,091.72x = 1,728,236,461.82
  5. Step 5: Solve for x
    x = 1,728,236,461.82/67,091.72
  6. Step 6: Final answer
    x = 25,759.31

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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.