Home / 70,945.56-106,439.20-21,027.08

Finding the Fourth Proportional to 70,945.56, 106,439.20 and 21,027.08

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Solution

The fourth proportional to 70,945.56, 106,439.20 and 21,027.08 is: 31,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,945.56 : 106,439.20 = 21,027.08 : x
  2. Step 2: Convert to fraction form
    70,945.56/106,439.20 = 21,027.08/x
  3. Step 3: Cross multiply
    70,945.56x = 106,439.20 × 21,027.08
  4. Step 4: Simplify right side
    70,945.56x = 2,238,105,787.07
  5. Step 5: Solve for x
    x = 2,238,105,787.07/70,945.56
  6. Step 6: Final answer
    x = 31,546.81

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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.