Home / 69,979.95-104,938.34-20,048.61

Finding the Fourth Proportional to 69,979.95, 104,938.34 and 20,048.61

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Solution

The fourth proportional to 69,979.95, 104,938.34 and 20,048.61 is: 30,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,979.95 : 104,938.34 = 20,048.61 : x
  2. Step 2: Convert to fraction form
    69,979.95/104,938.34 = 20,048.61/x
  3. Step 3: Cross multiply
    69,979.95x = 104,938.34 × 20,048.61
  4. Step 4: Simplify right side
    69,979.95x = 2,103,868,145.98
  5. Step 5: Solve for x
    x = 2,103,868,145.98/69,979.95
  6. Step 6: Final answer
    x = 30,063.87

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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.