Home / 75,142.67-103,696.89-43,313.62

Finding the Fourth Proportional to 75,142.67, 103,696.89 and 43,313.62

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Solution

The fourth proportional to 75,142.67, 103,696.89 and 43,313.62 is: 59,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,142.67 : 103,696.89 = 43,313.62 : x
  2. Step 2: Convert to fraction form
    75,142.67/103,696.89 = 43,313.62/x
  3. Step 3: Cross multiply
    75,142.67x = 103,696.89 × 43,313.62
  4. Step 4: Simplify right side
    75,142.67x = 4,491,487,688.64
  5. Step 5: Solve for x
    x = 4,491,487,688.64/75,142.67
  6. Step 6: Final answer
    x = 59,772.80

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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.