Home / 75,851.48-113,712.96-31,450.52

Finding the Fourth Proportional to 75,851.48, 113,712.96 and 31,450.52

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Solution

The fourth proportional to 75,851.48, 113,712.96 and 31,450.52 is: 47,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,851.48 : 113,712.96 = 31,450.52 : x
  2. Step 2: Convert to fraction form
    75,851.48/113,712.96 = 31,450.52/x
  3. Step 3: Cross multiply
    75,851.48x = 113,712.96 × 31,450.52
  4. Step 4: Simplify right side
    75,851.48x = 3,576,331,722.74
  5. Step 5: Solve for x
    x = 3,576,331,722.74/75,851.48
  6. Step 6: Final answer
    x = 47,149.14

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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.