Home / 75,631.83-113,297.38-69,431.68

Finding the Fourth Proportional to 75,631.83, 113,297.38 and 69,431.68

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Solution

The fourth proportional to 75,631.83, 113,297.38 and 69,431.68 is: 104,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,631.83 : 113,297.38 = 69,431.68 : x
  2. Step 2: Convert to fraction form
    75,631.83/113,297.38 = 69,431.68/x
  3. Step 3: Cross multiply
    75,631.83x = 113,297.38 × 69,431.68
  4. Step 4: Simplify right side
    75,631.83x = 7,866,427,791.59
  5. Step 5: Solve for x
    x = 7,866,427,791.59/75,631.83
  6. Step 6: Final answer
    x = 104,009.49

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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.