Home / 53,814.92-80,721.77-18,754.47

Finding the Fourth Proportional to 53,814.92, 80,721.77 and 18,754.47

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Solution

The fourth proportional to 53,814.92, 80,721.77 and 18,754.47 is: 28,131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,814.92 : 80,721.77 = 18,754.47 : x
  2. Step 2: Convert to fraction form
    53,814.92/80,721.77 = 18,754.47/x
  3. Step 3: Cross multiply
    53,814.92x = 80,721.77 × 18,754.47
  4. Step 4: Simplify right side
    53,814.92x = 1,513,893,920.04
  5. Step 5: Solve for x
    x = 1,513,893,920.04/53,814.92
  6. Step 6: Final answer
    x = 28,131.49

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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.