Home / 66,494.56-99,758.10-22,121.20

Finding the Fourth Proportional to 66,494.56, 99,758.10 and 22,121.20

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Solution

The fourth proportional to 66,494.56, 99,758.10 and 22,121.20 is: 33,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.56 : 99,758.10 = 22,121.20 : x
  2. Step 2: Convert to fraction form
    66,494.56/99,758.10 = 22,121.20/x
  3. Step 3: Cross multiply
    66,494.56x = 99,758.10 × 22,121.20
  4. Step 4: Simplify right side
    66,494.56x = 2,206,768,881.72
  5. Step 5: Solve for x
    x = 2,206,768,881.72/66,494.56
  6. Step 6: Final answer
    x = 33,187.21

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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.