Home / 66,808.07-100,209.67-20,059.73

Finding the Fourth Proportional to 66,808.07, 100,209.67 and 20,059.73

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Solution

The fourth proportional to 66,808.07, 100,209.67 and 20,059.73 is: 30,088.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.07 : 100,209.67 = 20,059.73 : x
  2. Step 2: Convert to fraction form
    66,808.07/100,209.67 = 20,059.73/x
  3. Step 3: Cross multiply
    66,808.07x = 100,209.67 × 20,059.73
  4. Step 4: Simplify right side
    66,808.07x = 2,010,178,372.39
  5. Step 5: Solve for x
    x = 2,010,178,372.39/66,808.07
  6. Step 6: Final answer
    x = 30,088.86

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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.