Home / 51,403.92-77,112.03-18,117.09

Finding the Fourth Proportional to 51,403.92, 77,112.03 and 18,117.09

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Solution

The fourth proportional to 51,403.92, 77,112.03 and 18,117.09 is: 27,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,403.92 : 77,112.03 = 18,117.09 : x
  2. Step 2: Convert to fraction form
    51,403.92/77,112.03 = 18,117.09/x
  3. Step 3: Cross multiply
    51,403.92x = 77,112.03 × 18,117.09
  4. Step 4: Simplify right side
    51,403.92x = 1,397,045,587.59
  5. Step 5: Solve for x
    x = 1,397,045,587.59/51,403.92
  6. Step 6: Final answer
    x = 27,177.80

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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.