Home / 66,115.76-91,240.85-35,901.14

Finding the Fourth Proportional to 66,115.76, 91,240.85 and 35,901.14

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Solution

The fourth proportional to 66,115.76, 91,240.85 and 35,901.14 is: 49,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,115.76 : 91,240.85 = 35,901.14 : x
  2. Step 2: Convert to fraction form
    66,115.76/91,240.85 = 35,901.14/x
  3. Step 3: Cross multiply
    66,115.76x = 91,240.85 × 35,901.14
  4. Step 4: Simplify right side
    66,115.76x = 3,275,650,350.06
  5. Step 5: Solve for x
    x = 3,275,650,350.06/66,115.76
  6. Step 6: Final answer
    x = 49,544.17

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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.