Home / 69,839.21-104,762.36-19,926.61

Finding the Fourth Proportional to 69,839.21, 104,762.36 and 19,926.61

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Solution

The fourth proportional to 69,839.21, 104,762.36 and 19,926.61 is: 29,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,839.21 : 104,762.36 = 19,926.61 : x
  2. Step 2: Convert to fraction form
    69,839.21/104,762.36 = 19,926.61/x
  3. Step 3: Cross multiply
    69,839.21x = 104,762.36 × 19,926.61
  4. Step 4: Simplify right side
    69,839.21x = 2,087,558,478.31
  5. Step 5: Solve for x
    x = 2,087,558,478.31/69,839.21
  6. Step 6: Final answer
    x = 29,890.92

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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.