Home / 75,136.37-103,687.96-43,305.20

Finding the Fourth Proportional to 75,136.37, 103,687.96 and 43,305.20

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Solution

The fourth proportional to 75,136.37, 103,687.96 and 43,305.20 is: 59,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.37 : 103,687.96 = 43,305.20 : x
  2. Step 2: Convert to fraction form
    75,136.37/103,687.96 = 43,305.20/x
  3. Step 3: Cross multiply
    75,136.37x = 103,687.96 × 43,305.20
  4. Step 4: Simplify right side
    75,136.37x = 4,490,227,845.39
  5. Step 5: Solve for x
    x = 4,490,227,845.39/75,136.37
  6. Step 6: Final answer
    x = 59,761.04

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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.