Home / 69,911.25-104,869.50-19,315.41

Finding the Fourth Proportional to 69,911.25, 104,869.50 and 19,315.41

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Solution

The fourth proportional to 69,911.25, 104,869.50 and 19,315.41 is: 28,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,911.25 : 104,869.50 = 19,315.41 : x
  2. Step 2: Convert to fraction form
    69,911.25/104,869.50 = 19,315.41/x
  3. Step 3: Cross multiply
    69,911.25x = 104,869.50 × 19,315.41
  4. Step 4: Simplify right side
    69,911.25x = 2,025,597,389.00
  5. Step 5: Solve for x
    x = 2,025,597,389.00/69,911.25
  6. Step 6: Final answer
    x = 28,973.84

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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.