Home / 53,814.11-80,721.65-18,753.71

Finding the Fourth Proportional to 53,814.11, 80,721.65 and 18,753.71

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Solution

The fourth proportional to 53,814.11, 80,721.65 and 18,753.71 is: 28,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,814.11 : 80,721.65 = 18,753.71 : x
  2. Step 2: Convert to fraction form
    53,814.11/80,721.65 = 18,753.71/x
  3. Step 3: Cross multiply
    53,814.11x = 80,721.65 × 18,753.71
  4. Step 4: Simplify right side
    53,814.11x = 1,513,830,414.82
  5. Step 5: Solve for x
    x = 1,513,830,414.82/53,814.11
  6. Step 6: Final answer
    x = 28,130.73

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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.