Home / 76,433.85-114,623.49-31,442.06

Finding the Fourth Proportional to 76,433.85, 114,623.49 and 31,442.06

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Solution

The fourth proportional to 76,433.85, 114,623.49 and 31,442.06 is: 47,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,433.85 : 114,623.49 = 31,442.06 : x
  2. Step 2: Convert to fraction form
    76,433.85/114,623.49 = 31,442.06/x
  3. Step 3: Cross multiply
    76,433.85x = 114,623.49 × 31,442.06
  4. Step 4: Simplify right side
    76,433.85x = 3,603,998,936.55
  5. Step 5: Solve for x
    x = 3,603,998,936.55/76,433.85
  6. Step 6: Final answer
    x = 47,151.87

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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.