Home / 66,127.20-91,256.31-35,912.58

Finding the Fourth Proportional to 66,127.20, 91,256.31 and 35,912.58

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Solution

The fourth proportional to 66,127.20, 91,256.31 and 35,912.58 is: 49,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,127.20 : 91,256.31 = 35,912.58 : x
  2. Step 2: Convert to fraction form
    66,127.20/91,256.31 = 35,912.58/x
  3. Step 3: Cross multiply
    66,127.20x = 91,256.31 × 35,912.58
  4. Step 4: Simplify right side
    66,127.20x = 3,277,249,533.38
  5. Step 5: Solve for x
    x = 3,277,249,533.38/66,127.20
  6. Step 6: Final answer
    x = 49,559.78

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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.