Home / 66,785.48-100,187.98-20,042.04

Finding the Fourth Proportional to 66,785.48, 100,187.98 and 20,042.04

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Solution

The fourth proportional to 66,785.48, 100,187.98 and 20,042.04 is: 30,065.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.48 : 100,187.98 = 20,042.04 : x
  2. Step 2: Convert to fraction form
    66,785.48/100,187.98 = 20,042.04/x
  3. Step 3: Cross multiply
    66,785.48x = 100,187.98 × 20,042.04
  4. Step 4: Simplify right side
    66,785.48x = 2,007,971,502.68
  5. Step 5: Solve for x
    x = 2,007,971,502.68/66,785.48
  6. Step 6: Final answer
    x = 30,065.99

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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.