Home / 69,731.40-104,581.20-19,810.44

Finding the Fourth Proportional to 69,731.40, 104,581.20 and 19,810.44

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Solution

The fourth proportional to 69,731.40, 104,581.20 and 19,810.44 is: 29,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,731.40 : 104,581.20 = 19,810.44 : x
  2. Step 2: Convert to fraction form
    69,731.40/104,581.20 = 19,810.44/x
  3. Step 3: Cross multiply
    69,731.40x = 104,581.20 × 19,810.44
  4. Step 4: Simplify right side
    69,731.40x = 2,071,799,587.73
  5. Step 5: Solve for x
    x = 2,071,799,587.73/69,731.40
  6. Step 6: Final answer
    x = 29,711.14

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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.