Home / 69,788.89-104,683.96-19,868.95

Finding the Fourth Proportional to 69,788.89, 104,683.96 and 19,868.95

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Solution

The fourth proportional to 69,788.89, 104,683.96 and 19,868.95 is: 29,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,788.89 : 104,683.96 = 19,868.95 : x
  2. Step 2: Convert to fraction form
    69,788.89/104,683.96 = 19,868.95/x
  3. Step 3: Cross multiply
    69,788.89x = 104,683.96 × 19,868.95
  4. Step 4: Simplify right side
    69,788.89x = 2,079,960,367.04
  5. Step 5: Solve for x
    x = 2,079,960,367.04/69,788.89
  6. Step 6: Final answer
    x = 29,803.60

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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.