Home / 71,149.02-106,735.05-21,889.50

Finding the Fourth Proportional to 71,149.02, 106,735.05 and 21,889.50

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Solution

The fourth proportional to 71,149.02, 106,735.05 and 21,889.50 is: 32,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.02 : 106,735.05 = 21,889.50 : x
  2. Step 2: Convert to fraction form
    71,149.02/106,735.05 = 21,889.50/x
  3. Step 3: Cross multiply
    71,149.02x = 106,735.05 × 21,889.50
  4. Step 4: Simplify right side
    71,149.02x = 2,336,376,876.98
  5. Step 5: Solve for x
    x = 2,336,376,876.98/71,149.02
  6. Step 6: Final answer
    x = 32,837.79

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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.