Home / 66,609.12-99,930.08-22,240.64

Finding the Fourth Proportional to 66,609.12, 99,930.08 and 22,240.64

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Solution

The fourth proportional to 66,609.12, 99,930.08 and 22,240.64 is: 33,366.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,609.12 : 99,930.08 = 22,240.64 : x
  2. Step 2: Convert to fraction form
    66,609.12/99,930.08 = 22,240.64/x
  3. Step 3: Cross multiply
    66,609.12x = 99,930.08 × 22,240.64
  4. Step 4: Simplify right side
    66,609.12x = 2,222,508,934.45
  5. Step 5: Solve for x
    x = 2,222,508,934.45/66,609.12
  6. Step 6: Final answer
    x = 33,366.44

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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.