Home / 76,018.99-104,909.16-50,481.31

Finding the Fourth Proportional to 76,018.99, 104,909.16 and 50,481.31

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Solution

The fourth proportional to 76,018.99, 104,909.16 and 50,481.31 is: 69,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,018.99 : 104,909.16 = 50,481.31 : x
  2. Step 2: Convert to fraction form
    76,018.99/104,909.16 = 50,481.31/x
  3. Step 3: Cross multiply
    76,018.99x = 104,909.16 × 50,481.31
  4. Step 4: Simplify right side
    76,018.99x = 5,295,951,827.80
  5. Step 5: Solve for x
    x = 5,295,951,827.80/76,018.99
  6. Step 6: Final answer
    x = 69,666.17

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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.