Home / 66,946.34-100,417.08-20,198

Finding the Fourth Proportional to 66,946.34, 100,417.08 and 20,198

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Solution

The fourth proportional to 66,946.34, 100,417.08 and 20,198 is: 30,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,946.34 : 100,417.08 = 20,198 : x
  2. Step 2: Convert to fraction form
    66,946.34/100,417.08 = 20,198/x
  3. Step 3: Cross multiply
    66,946.34x = 100,417.08 × 20,198
  4. Step 4: Simplify right side
    66,946.34x = 2,028,224,181.84
  5. Step 5: Solve for x
    x = 2,028,224,181.84/66,946.34
  6. Step 6: Final answer
    x = 30,296.27

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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.