Home / 52,568.25-78,849.50-21,429.69

Finding the Fourth Proportional to 52,568.25, 78,849.50 and 21,429.69

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Solution

The fourth proportional to 52,568.25, 78,849.50 and 21,429.69 is: 32,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,568.25 : 78,849.50 = 21,429.69 : x
  2. Step 2: Convert to fraction form
    52,568.25/78,849.50 = 21,429.69/x
  3. Step 3: Cross multiply
    52,568.25x = 78,849.50 × 21,429.69
  4. Step 4: Simplify right side
    52,568.25x = 1,689,720,234.51
  5. Step 5: Solve for x
    x = 1,689,720,234.51/52,568.25
  6. Step 6: Final answer
    x = 32,143.36

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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.