Home / 66,968.82-100,458.09-20,225.34

Finding the Fourth Proportional to 66,968.82, 100,458.09 and 20,225.34

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Solution

The fourth proportional to 66,968.82, 100,458.09 and 20,225.34 is: 30,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,968.82 : 100,458.09 = 20,225.34 : x
  2. Step 2: Convert to fraction form
    66,968.82/100,458.09 = 20,225.34/x
  3. Step 3: Cross multiply
    66,968.82x = 100,458.09 × 20,225.34
  4. Step 4: Simplify right side
    66,968.82x = 2,031,799,026.00
  5. Step 5: Solve for x
    x = 2,031,799,026.00/66,968.82
  6. Step 6: Final answer
    x = 30,339.48

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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.