Home / 75,135.89-103,687.37-43,304.57

Finding the Fourth Proportional to 75,135.89, 103,687.37 and 43,304.57

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Solution

The fourth proportional to 75,135.89, 103,687.37 and 43,304.57 is: 59,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.89 : 103,687.37 = 43,304.57 : x
  2. Step 2: Convert to fraction form
    75,135.89/103,687.37 = 43,304.57/x
  3. Step 3: Cross multiply
    75,135.89x = 103,687.37 × 43,304.57
  4. Step 4: Simplify right side
    75,135.89x = 4,490,136,755.76
  5. Step 5: Solve for x
    x = 4,490,136,755.76/75,135.89
  6. Step 6: Final answer
    x = 59,760.21

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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.