Home / 89,812.80-123,949.96-51,577.36

Finding the Fourth Proportional to 89,812.80, 123,949.96 and 51,577.36

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Solution

The fourth proportional to 89,812.80, 123,949.96 and 51,577.36 is: 71,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.80 : 123,949.96 = 51,577.36 : x
  2. Step 2: Convert to fraction form
    89,812.80/123,949.96 = 51,577.36/x
  3. Step 3: Cross multiply
    89,812.80x = 123,949.96 × 51,577.36
  4. Step 4: Simplify right side
    89,812.80x = 6,393,011,708.91
  5. Step 5: Solve for x
    x = 6,393,011,708.91/89,812.80
  6. Step 6: Final answer
    x = 71,181.52

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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.