Home / 82,292.48-122,716.12-81,544.04

Finding the Fourth Proportional to 82,292.48, 122,716.12 and 81,544.04

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Solution

The fourth proportional to 82,292.48, 122,716.12 and 81,544.04 is: 121,600.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,292.48 : 122,716.12 = 81,544.04 : x
  2. Step 2: Convert to fraction form
    82,292.48/122,716.12 = 81,544.04/x
  3. Step 3: Cross multiply
    82,292.48x = 122,716.12 × 81,544.04
  4. Step 4: Simplify right side
    82,292.48x = 10,006,768,197.92
  5. Step 5: Solve for x
    x = 10,006,768,197.92/82,292.48
  6. Step 6: Final answer
    x = 121,600.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.