Home / 75,682.90-113,530.56-31,301.38

Finding the Fourth Proportional to 75,682.90, 113,530.56 and 31,301.38

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Solution

The fourth proportional to 75,682.90, 113,530.56 and 31,301.38 is: 46,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,682.90 : 113,530.56 = 31,301.38 : x
  2. Step 2: Convert to fraction form
    75,682.90/113,530.56 = 31,301.38/x
  3. Step 3: Cross multiply
    75,682.90x = 113,530.56 × 31,301.38
  4. Step 4: Simplify right side
    75,682.90x = 3,553,663,200.17
  5. Step 5: Solve for x
    x = 3,553,663,200.17/75,682.90
  6. Step 6: Final answer
    x = 46,954.64

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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.