Home / 75,456.72-104,139.36-43,633.44

Finding the Fourth Proportional to 75,456.72, 104,139.36 and 43,633.44

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Solution

The fourth proportional to 75,456.72, 104,139.36 and 43,633.44 is: 60,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,456.72 : 104,139.36 = 43,633.44 : x
  2. Step 2: Convert to fraction form
    75,456.72/104,139.36 = 43,633.44/x
  3. Step 3: Cross multiply
    75,456.72x = 104,139.36 × 43,633.44
  4. Step 4: Simplify right side
    75,456.72x = 4,543,958,516.20
  5. Step 5: Solve for x
    x = 4,543,958,516.20/75,456.72
  6. Step 6: Final answer
    x = 60,219.40

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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.