Home / 75,243.90-113,006.31-66,241.20

Finding the Fourth Proportional to 75,243.90, 113,006.31 and 66,241.20

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Solution

The fourth proportional to 75,243.90, 113,006.31 and 66,241.20 is: 99,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,243.90 : 113,006.31 = 66,241.20 : x
  2. Step 2: Convert to fraction form
    75,243.90/113,006.31 = 66,241.20/x
  3. Step 3: Cross multiply
    75,243.90x = 113,006.31 × 66,241.20
  4. Step 4: Simplify right side
    75,243.90x = 7,485,673,581.97
  5. Step 5: Solve for x
    x = 7,485,673,581.97/75,243.90
  6. Step 6: Final answer
    x = 99,485.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.