Home / 53,279.27-79,892.99-28,331.27

Finding the Fourth Proportional to 53,279.27, 79,892.99 and 28,331.27

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Solution

The fourth proportional to 53,279.27, 79,892.99 and 28,331.27 is: 42,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,279.27 : 79,892.99 = 28,331.27 : x
  2. Step 2: Convert to fraction form
    53,279.27/79,892.99 = 28,331.27/x
  3. Step 3: Cross multiply
    53,279.27x = 79,892.99 × 28,331.27
  4. Step 4: Simplify right side
    53,279.27x = 2,263,469,729.14
  5. Step 5: Solve for x
    x = 2,263,469,729.14/53,279.27
  6. Step 6: Final answer
    x = 42,483.12

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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.