Home / 81,989.30-122,984.10-22,824.98

Finding the Fourth Proportional to 81,989.30, 122,984.10 and 22,824.98

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Solution

The fourth proportional to 81,989.30, 122,984.10 and 22,824.98 is: 34,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,989.30 : 122,984.10 = 22,824.98 : x
  2. Step 2: Convert to fraction form
    81,989.30/122,984.10 = 22,824.98/x
  3. Step 3: Cross multiply
    81,989.30x = 122,984.10 × 22,824.98
  4. Step 4: Simplify right side
    81,989.30x = 2,807,109,622.82
  5. Step 5: Solve for x
    x = 2,807,109,622.82/81,989.30
  6. Step 6: Final answer
    x = 34,237.51

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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.