Home / 75,260.33-103,864.05-49,721.89

Finding the Fourth Proportional to 75,260.33, 103,864.05 and 49,721.89

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Solution

The fourth proportional to 75,260.33, 103,864.05 and 49,721.89 is: 68,619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,260.33 : 103,864.05 = 49,721.89 : x
  2. Step 2: Convert to fraction form
    75,260.33/103,864.05 = 49,721.89/x
  3. Step 3: Cross multiply
    75,260.33x = 103,864.05 × 49,721.89
  4. Step 4: Simplify right side
    75,260.33x = 5,164,316,804.14
  5. Step 5: Solve for x
    x = 5,164,316,804.14/75,260.33
  6. Step 6: Final answer
    x = 68,619.38

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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.