Home / 75,144.64-103,699.44-43,313.32

Finding the Fourth Proportional to 75,144.64, 103,699.44 and 43,313.32

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Solution

The fourth proportional to 75,144.64, 103,699.44 and 43,313.32 is: 59,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,144.64 : 103,699.44 = 43,313.32 : x
  2. Step 2: Convert to fraction form
    75,144.64/103,699.44 = 43,313.32/x
  3. Step 3: Cross multiply
    75,144.64x = 103,699.44 × 43,313.32
  4. Step 4: Simplify right side
    75,144.64x = 4,491,567,028.54
  5. Step 5: Solve for x
    x = 4,491,567,028.54/75,144.64
  6. Step 6: Final answer
    x = 59,772.29

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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.