Home / 65,982.83-91,043.66-39,149.15

Finding the Fourth Proportional to 65,982.83, 91,043.66 and 39,149.15

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Solution

The fourth proportional to 65,982.83, 91,043.66 and 39,149.15 is: 54,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,982.83 : 91,043.66 = 39,149.15 : x
  2. Step 2: Convert to fraction form
    65,982.83/91,043.66 = 39,149.15/x
  3. Step 3: Cross multiply
    65,982.83x = 91,043.66 × 39,149.15
  4. Step 4: Simplify right side
    65,982.83x = 3,564,281,544.54
  5. Step 5: Solve for x
    x = 3,564,281,544.54/65,982.83
  6. Step 6: Final answer
    x = 54,018.32

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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.