Home / 69,916.24-104,890.72-19,996.96

Finding the Fourth Proportional to 69,916.24, 104,890.72 and 19,996.96

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Solution

The fourth proportional to 69,916.24, 104,890.72 and 19,996.96 is: 30,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,916.24 : 104,890.72 = 19,996.96 : x
  2. Step 2: Convert to fraction form
    69,916.24/104,890.72 = 19,996.96/x
  3. Step 3: Cross multiply
    69,916.24x = 104,890.72 × 19,996.96
  4. Step 4: Simplify right side
    69,916.24x = 2,097,495,532.21
  5. Step 5: Solve for x
    x = 2,097,495,532.21/69,916.24
  6. Step 6: Final answer
    x = 30,000.12

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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.