Home / 75,625.16-113,375.76-31,283.72

Finding the Fourth Proportional to 75,625.16, 113,375.76 and 31,283.72

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Solution

The fourth proportional to 75,625.16, 113,375.76 and 31,283.72 is: 46,899.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,625.16 : 113,375.76 = 31,283.72 : x
  2. Step 2: Convert to fraction form
    75,625.16/113,375.76 = 31,283.72/x
  3. Step 3: Cross multiply
    75,625.16x = 113,375.76 × 31,283.72
  4. Step 4: Simplify right side
    75,625.16x = 3,546,815,530.63
  5. Step 5: Solve for x
    x = 3,546,815,530.63/75,625.16
  6. Step 6: Final answer
    x = 46,899.94

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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.