Home / 82,338.48-113,666.28-55,161.36

Finding the Fourth Proportional to 82,338.48, 113,666.28 and 55,161.36

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Solution

The fourth proportional to 82,338.48, 113,666.28 and 55,161.36 is: 76,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,338.48 : 113,666.28 = 55,161.36 : x
  2. Step 2: Convert to fraction form
    82,338.48/113,666.28 = 55,161.36/x
  3. Step 3: Cross multiply
    82,338.48x = 113,666.28 × 55,161.36
  4. Step 4: Simplify right side
    82,338.48x = 6,269,986,590.94
  5. Step 5: Solve for x
    x = 6,269,986,590.94/82,338.48
  6. Step 6: Final answer
    x = 76,148.92

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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.