Home / 81,931.20-122,874.93-50,536.95

Finding the Fourth Proportional to 81,931.20, 122,874.93 and 50,536.95

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Solution

The fourth proportional to 81,931.20, 122,874.93 and 50,536.95 is: 75,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,931.20 : 122,874.93 = 50,536.95 : x
  2. Step 2: Convert to fraction form
    81,931.20/122,874.93 = 50,536.95/x
  3. Step 3: Cross multiply
    81,931.20x = 122,874.93 × 50,536.95
  4. Step 4: Simplify right side
    81,931.20x = 6,209,724,193.66
  5. Step 5: Solve for x
    x = 6,209,724,193.66/81,931.20
  6. Step 6: Final answer
    x = 75,791.94

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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.