Home / 66,101.05-91,220.16-35,886.70

Finding the Fourth Proportional to 66,101.05, 91,220.16 and 35,886.70

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Solution

The fourth proportional to 66,101.05, 91,220.16 and 35,886.70 is: 49,524.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101.05 : 91,220.16 = 35,886.70 : x
  2. Step 2: Convert to fraction form
    66,101.05/91,220.16 = 35,886.70/x
  3. Step 3: Cross multiply
    66,101.05x = 91,220.16 × 35,886.70
  4. Step 4: Simplify right side
    66,101.05x = 3,273,590,515.87
  5. Step 5: Solve for x
    x = 3,273,590,515.87/66,101.05
  6. Step 6: Final answer
    x = 49,524.03

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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.