Home / 71,916.04-107,863.65-21,982.73

Finding the Fourth Proportional to 71,916.04, 107,863.65 and 21,982.73

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Solution

The fourth proportional to 71,916.04, 107,863.65 and 21,982.73 is: 32,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,916.04 : 107,863.65 = 21,982.73 : x
  2. Step 2: Convert to fraction form
    71,916.04/107,863.65 = 21,982.73/x
  3. Step 3: Cross multiply
    71,916.04x = 107,863.65 × 21,982.73
  4. Step 4: Simplify right side
    71,916.04x = 2,371,136,955.45
  5. Step 5: Solve for x
    x = 2,371,136,955.45/71,916.04
  6. Step 6: Final answer
    x = 32,970.91

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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.