Home / 51,553.86-71,138.07-28,891.02

Finding the Fourth Proportional to 51,553.86, 71,138.07 and 28,891.02

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Solution

The fourth proportional to 51,553.86, 71,138.07 and 28,891.02 is: 39,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,553.86 : 71,138.07 = 28,891.02 : x
  2. Step 2: Convert to fraction form
    51,553.86/71,138.07 = 28,891.02/x
  3. Step 3: Cross multiply
    51,553.86x = 71,138.07 × 28,891.02
  4. Step 4: Simplify right side
    51,553.86x = 2,055,251,403.13
  5. Step 5: Solve for x
    x = 2,055,251,403.13/51,553.86
  6. Step 6: Final answer
    x = 39,866.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.