Home / 75,828.15-113,765.31-53,684.37

Finding the Fourth Proportional to 75,828.15, 113,765.31 and 53,684.37

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Solution

The fourth proportional to 75,828.15, 113,765.31 and 53,684.37 is: 80,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,828.15 : 113,765.31 = 53,684.37 : x
  2. Step 2: Convert to fraction form
    75,828.15/113,765.31 = 53,684.37/x
  3. Step 3: Cross multiply
    75,828.15x = 113,765.31 × 53,684.37
  4. Step 4: Simplify right side
    75,828.15x = 6,107,418,995.20
  5. Step 5: Solve for x
    x = 6,107,418,995.20/75,828.15
  6. Step 6: Final answer
    x = 80,542.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.