Home / 81,190.40-112,077.30-49,369.52

Finding the Fourth Proportional to 81,190.40, 112,077.30 and 49,369.52

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Solution

The fourth proportional to 81,190.40, 112,077.30 and 49,369.52 is: 68,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,190.40 : 112,077.30 = 49,369.52 : x
  2. Step 2: Convert to fraction form
    81,190.40/112,077.30 = 49,369.52/x
  3. Step 3: Cross multiply
    81,190.40x = 112,077.30 × 49,369.52
  4. Step 4: Simplify right side
    81,190.40x = 5,533,202,503.90
  5. Step 5: Solve for x
    x = 5,533,202,503.90/81,190.40
  6. Step 6: Final answer
    x = 68,150.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.