Home / 66,100.16-91,253.78-50,959.64

Finding the Fourth Proportional to 66,100.16, 91,253.78 and 50,959.64

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Solution

The fourth proportional to 66,100.16, 91,253.78 and 50,959.64 is: 70,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100.16 : 91,253.78 = 50,959.64 : x
  2. Step 2: Convert to fraction form
    66,100.16/91,253.78 = 50,959.64/x
  3. Step 3: Cross multiply
    66,100.16x = 91,253.78 × 50,959.64
  4. Step 4: Simplify right side
    66,100.16x = 4,650,259,777.44
  5. Step 5: Solve for x
    x = 4,650,259,777.44/66,100.16
  6. Step 6: Final answer
    x = 70,351.72

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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.