Home / 65,512.14-91,013.04-64,896.12

Finding the Fourth Proportional to 65,512.14, 91,013.04 and 64,896.12

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Solution

The fourth proportional to 65,512.14, 91,013.04 and 64,896.12 is: 90,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,512.14 : 91,013.04 = 64,896.12 : x
  2. Step 2: Convert to fraction form
    65,512.14/91,013.04 = 64,896.12/x
  3. Step 3: Cross multiply
    65,512.14x = 91,013.04 × 64,896.12
  4. Step 4: Simplify right side
    65,512.14x = 5,906,393,165.40
  5. Step 5: Solve for x
    x = 5,906,393,165.40/65,512.14
  6. Step 6: Final answer
    x = 90,157.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.