Home / 52,128.38-78,206.96-15,192.38

Finding the Fourth Proportional to 52,128.38, 78,206.96 and 15,192.38

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Solution

The fourth proportional to 52,128.38, 78,206.96 and 15,192.38 is: 22,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128.38 : 78,206.96 = 15,192.38 : x
  2. Step 2: Convert to fraction form
    52,128.38/78,206.96 = 15,192.38/x
  3. Step 3: Cross multiply
    52,128.38x = 78,206.96 × 15,192.38
  4. Step 4: Simplify right side
    52,128.38x = 1,188,149,501.91
  5. Step 5: Solve for x
    x = 1,188,149,501.91/52,128.38
  6. Step 6: Final answer
    x = 22,792.76

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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.