Home / 89,815.86-123,943.64-49,529.03

Finding the Fourth Proportional to 89,815.86, 123,943.64 and 49,529.03

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Solution

The fourth proportional to 89,815.86, 123,943.64 and 49,529.03 is: 68,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.86 : 123,943.64 = 49,529.03 : x
  2. Step 2: Convert to fraction form
    89,815.86/123,943.64 = 49,529.03/x
  3. Step 3: Cross multiply
    89,815.86x = 123,943.64 × 49,529.03
  4. Step 4: Simplify right side
    89,815.86x = 6,138,807,396.51
  5. Step 5: Solve for x
    x = 6,138,807,396.51/89,815.86
  6. Step 6: Final answer
    x = 68,348.81

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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.