Home / 74,789.75-103,166.43-49,300.13

Finding the Fourth Proportional to 74,789.75, 103,166.43 and 49,300.13

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Solution

The fourth proportional to 74,789.75, 103,166.43 and 49,300.13 is: 68,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,789.75 : 103,166.43 = 49,300.13 : x
  2. Step 2: Convert to fraction form
    74,789.75/103,166.43 = 49,300.13/x
  3. Step 3: Cross multiply
    74,789.75x = 103,166.43 × 49,300.13
  4. Step 4: Simplify right side
    74,789.75x = 5,086,117,894.80
  5. Step 5: Solve for x
    x = 5,086,117,894.80/74,789.75
  6. Step 6: Final answer
    x = 68,005.55

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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.