Home / 66,404.65-91,636.09-36,189.36

Finding the Fourth Proportional to 66,404.65, 91,636.09 and 36,189.36

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Solution

The fourth proportional to 66,404.65, 91,636.09 and 36,189.36 is: 49,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,404.65 : 91,636.09 = 36,189.36 : x
  2. Step 2: Convert to fraction form
    66,404.65/91,636.09 = 36,189.36/x
  3. Step 3: Cross multiply
    66,404.65x = 91,636.09 × 36,189.36
  4. Step 4: Simplify right side
    66,404.65x = 3,316,251,679.09
  5. Step 5: Solve for x
    x = 3,316,251,679.09/66,404.65
  6. Step 6: Final answer
    x = 49,940.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.