Home / 80,529.36-120,796.56-38,414.01

Finding the Fourth Proportional to 80,529.36, 120,796.56 and 38,414.01

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Solution

The fourth proportional to 80,529.36, 120,796.56 and 38,414.01 is: 57,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,529.36 : 120,796.56 = 38,414.01 : x
  2. Step 2: Convert to fraction form
    80,529.36/120,796.56 = 38,414.01/x
  3. Step 3: Cross multiply
    80,529.36x = 120,796.56 × 38,414.01
  4. Step 4: Simplify right side
    80,529.36x = 4,640,280,263.81
  5. Step 5: Solve for x
    x = 4,640,280,263.81/80,529.36
  6. Step 6: Final answer
    x = 57,622.22

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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.