Home / 66,817.18-100,228.20-22,445.38

Finding the Fourth Proportional to 66,817.18, 100,228.20 and 22,445.38

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Solution

The fourth proportional to 66,817.18, 100,228.20 and 22,445.38 is: 33,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,817.18 : 100,228.20 = 22,445.38 : x
  2. Step 2: Convert to fraction form
    66,817.18/100,228.20 = 22,445.38/x
  3. Step 3: Cross multiply
    66,817.18x = 100,228.20 × 22,445.38
  4. Step 4: Simplify right side
    66,817.18x = 2,249,660,035.72
  5. Step 5: Solve for x
    x = 2,249,660,035.72/66,817.18
  6. Step 6: Final answer
    x = 33,668.89

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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.