Home / 66,813.18-100,222.20-22,441.38

Finding the Fourth Proportional to 66,813.18, 100,222.20 and 22,441.38

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Solution

The fourth proportional to 66,813.18, 100,222.20 and 22,441.38 is: 33,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813.18 : 100,222.20 = 22,441.38 : x
  2. Step 2: Convert to fraction form
    66,813.18/100,222.20 = 22,441.38/x
  3. Step 3: Cross multiply
    66,813.18x = 100,222.20 × 22,441.38
  4. Step 4: Simplify right side
    66,813.18x = 2,249,124,474.64
  5. Step 5: Solve for x
    x = 2,249,124,474.64/66,813.18
  6. Step 6: Final answer
    x = 33,662.89

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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.