Home / 66,001.14-91,044.81-39,117.78

Finding the Fourth Proportional to 66,001.14, 91,044.81 and 39,117.78

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Solution

The fourth proportional to 66,001.14, 91,044.81 and 39,117.78 is: 53,960.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,001.14 : 91,044.81 = 39,117.78 : x
  2. Step 2: Convert to fraction form
    66,001.14/91,044.81 = 39,117.78/x
  3. Step 3: Cross multiply
    66,001.14x = 91,044.81 × 39,117.78
  4. Step 4: Simplify right side
    66,001.14x = 3,561,470,847.72
  5. Step 5: Solve for x
    x = 3,561,470,847.72/66,001.14
  6. Step 6: Final answer
    x = 53,960.75

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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.