Home / 75,073.87-103,639.45-43,236.62

Finding the Fourth Proportional to 75,073.87, 103,639.45 and 43,236.62

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Solution

The fourth proportional to 75,073.87, 103,639.45 and 43,236.62 is: 59,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,073.87 : 103,639.45 = 43,236.62 : x
  2. Step 2: Convert to fraction form
    75,073.87/103,639.45 = 43,236.62/x
  3. Step 3: Cross multiply
    75,073.87x = 103,639.45 × 43,236.62
  4. Step 4: Simplify right side
    75,073.87x = 4,481,019,516.66
  5. Step 5: Solve for x
    x = 4,481,019,516.66/75,073.87
  6. Step 6: Final answer
    x = 59,688.14

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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.