Home / 72,556.64-108,792.92-28,131.38

Finding the Fourth Proportional to 72,556.64, 108,792.92 and 28,131.38

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Solution

The fourth proportional to 72,556.64, 108,792.92 and 28,131.38 is: 42,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,556.64 : 108,792.92 = 28,131.38 : x
  2. Step 2: Convert to fraction form
    72,556.64/108,792.92 = 28,131.38/x
  3. Step 3: Cross multiply
    72,556.64x = 108,792.92 × 28,131.38
  4. Step 4: Simplify right side
    72,556.64x = 3,060,494,908.17
  5. Step 5: Solve for x
    x = 3,060,494,908.17/72,556.64
  6. Step 6: Final answer
    x = 42,180.77

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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.