Home / 66,851.09-100,209.12-41,908.65

Finding the Fourth Proportional to 66,851.09, 100,209.12 and 41,908.65

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Solution

The fourth proportional to 66,851.09, 100,209.12 and 41,908.65 is: 62,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,851.09 : 100,209.12 = 41,908.65 : x
  2. Step 2: Convert to fraction form
    66,851.09/100,209.12 = 41,908.65/x
  3. Step 3: Cross multiply
    66,851.09x = 100,209.12 × 41,908.65
  4. Step 4: Simplify right side
    66,851.09x = 4,199,628,936.89
  5. Step 5: Solve for x
    x = 4,199,628,936.89/66,851.09
  6. Step 6: Final answer
    x = 62,820.65

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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.