Home / 75,510.60-113,279.56-31,112.66

Finding the Fourth Proportional to 75,510.60, 113,279.56 and 31,112.66

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Solution

The fourth proportional to 75,510.60, 113,279.56 and 31,112.66 is: 46,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,510.60 : 113,279.56 = 31,112.66 : x
  2. Step 2: Convert to fraction form
    75,510.60/113,279.56 = 31,112.66/x
  3. Step 3: Cross multiply
    75,510.60x = 113,279.56 × 31,112.66
  4. Step 4: Simplify right side
    75,510.60x = 3,524,427,791.05
  5. Step 5: Solve for x
    x = 3,524,427,791.05/75,510.60
  6. Step 6: Final answer
    x = 46,674.61

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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.