Home / 71,911.04-107,821.46-21,974.54

Finding the Fourth Proportional to 71,911.04, 107,821.46 and 21,974.54

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Solution

The fourth proportional to 71,911.04, 107,821.46 and 21,974.54 is: 32,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,911.04 : 107,821.46 = 21,974.54 : x
  2. Step 2: Convert to fraction form
    71,911.04/107,821.46 = 21,974.54/x
  3. Step 3: Cross multiply
    71,911.04x = 107,821.46 × 21,974.54
  4. Step 4: Simplify right side
    71,911.04x = 2,369,326,985.63
  5. Step 5: Solve for x
    x = 2,369,326,985.63/71,911.04
  6. Step 6: Final answer
    x = 32,948.03

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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.