Home / 66,895.46-100,343.18-20,148.33

Finding the Fourth Proportional to 66,895.46, 100,343.18 and 20,148.33

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Solution

The fourth proportional to 66,895.46, 100,343.18 and 20,148.33 is: 30,222.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,895.46 : 100,343.18 = 20,148.33 : x
  2. Step 2: Convert to fraction form
    66,895.46/100,343.18 = 20,148.33/x
  3. Step 3: Cross multiply
    66,895.46x = 100,343.18 × 20,148.33
  4. Step 4: Simplify right side
    66,895.46x = 2,021,747,403.15
  5. Step 5: Solve for x
    x = 2,021,747,403.15/66,895.46
  6. Step 6: Final answer
    x = 30,222.49

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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.