Home / 75,691.35-113,004.81-57,828.42

Finding the Fourth Proportional to 75,691.35, 113,004.81 and 57,828.42

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Solution

The fourth proportional to 75,691.35, 113,004.81 and 57,828.42 is: 86,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,691.35 : 113,004.81 = 57,828.42 : x
  2. Step 2: Convert to fraction form
    75,691.35/113,004.81 = 57,828.42/x
  3. Step 3: Cross multiply
    75,691.35x = 113,004.81 × 57,828.42
  4. Step 4: Simplify right side
    75,691.35x = 6,534,889,614.70
  5. Step 5: Solve for x
    x = 6,534,889,614.70/75,691.35
  6. Step 6: Final answer
    x = 86,336.02

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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.