Home / 71,898.54-107,861.93-21,985.73

Finding the Fourth Proportional to 71,898.54, 107,861.93 and 21,985.73

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Solution

The fourth proportional to 71,898.54, 107,861.93 and 21,985.73 is: 32,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,898.54 : 107,861.93 = 21,985.73 : x
  2. Step 2: Convert to fraction form
    71,898.54/107,861.93 = 21,985.73/x
  3. Step 3: Cross multiply
    71,898.54x = 107,861.93 × 21,985.73
  4. Step 4: Simplify right side
    71,898.54x = 2,371,423,107.95
  5. Step 5: Solve for x
    x = 2,371,423,107.95/71,898.54
  6. Step 6: Final answer
    x = 32,982.91

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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.