Home / 71,837.94-107,772.76-21,921.90

Finding the Fourth Proportional to 71,837.94, 107,772.76 and 21,921.90

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Solution

The fourth proportional to 71,837.94, 107,772.76 and 21,921.90 is: 32,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,837.94 : 107,772.76 = 21,921.90 : x
  2. Step 2: Convert to fraction form
    71,837.94/107,772.76 = 21,921.90/x
  3. Step 3: Cross multiply
    71,837.94x = 107,772.76 × 21,921.90
  4. Step 4: Simplify right side
    71,837.94x = 2,362,583,667.44
  5. Step 5: Solve for x
    x = 2,362,583,667.44/71,837.94
  6. Step 6: Final answer
    x = 32,887.69

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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.