Home / 82,145.59-113,337.78-54,961.64

Finding the Fourth Proportional to 82,145.59, 113,337.78 and 54,961.64

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Solution

The fourth proportional to 82,145.59, 113,337.78 and 54,961.64 is: 75,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,145.59 : 113,337.78 = 54,961.64 : x
  2. Step 2: Convert to fraction form
    82,145.59/113,337.78 = 54,961.64/x
  3. Step 3: Cross multiply
    82,145.59x = 113,337.78 × 54,961.64
  4. Step 4: Simplify right side
    82,145.59x = 6,229,230,224.14
  5. Step 5: Solve for x
    x = 6,229,230,224.14/82,145.59
  6. Step 6: Final answer
    x = 75,831.58

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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.