Home / 51,874.20-77,632.10-31,112.60

Finding the Fourth Proportional to 51,874.20, 77,632.10 and 31,112.60

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Solution

The fourth proportional to 51,874.20, 77,632.10 and 31,112.60 is: 46,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,874.20 : 77,632.10 = 31,112.60 : x
  2. Step 2: Convert to fraction form
    51,874.20/77,632.10 = 31,112.60/x
  3. Step 3: Cross multiply
    51,874.20x = 77,632.10 × 31,112.60
  4. Step 4: Simplify right side
    51,874.20x = 2,415,336,474.46
  5. Step 5: Solve for x
    x = 2,415,336,474.46/51,874.20
  6. Step 6: Final answer
    x = 46,561.42

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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.