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Finding the Fourth Proportional to 75,160.89, 103,721.81 and 43,329.51

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Solution

The fourth proportional to 75,160.89, 103,721.81 and 43,329.51 is: 59,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,160.89 : 103,721.81 = 43,329.51 : x
  2. Step 2: Convert to fraction form
    75,160.89/103,721.81 = 43,329.51/x
  3. Step 3: Cross multiply
    75,160.89x = 103,721.81 × 43,329.51
  4. Step 4: Simplify right side
    75,160.89x = 4,494,214,986.97
  5. Step 5: Solve for x
    x = 4,494,214,986.97/75,160.89
  6. Step 6: Final answer
    x = 59,794.60

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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.