Home / 74,989.64-103,511.77-43,171.22

Finding the Fourth Proportional to 74,989.64, 103,511.77 and 43,171.22

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Solution

The fourth proportional to 74,989.64, 103,511.77 and 43,171.22 is: 59,591.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,989.64 : 103,511.77 = 43,171.22 : x
  2. Step 2: Convert to fraction form
    74,989.64/103,511.77 = 43,171.22/x
  3. Step 3: Cross multiply
    74,989.64x = 103,511.77 × 43,171.22
  4. Step 4: Simplify right side
    74,989.64x = 4,468,729,546.11
  5. Step 5: Solve for x
    x = 4,468,729,546.11/74,989.64
  6. Step 6: Final answer
    x = 59,591.29

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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.