Home / 89,583.50-123,573.80-55,991.18

Finding the Fourth Proportional to 89,583.50, 123,573.80 and 55,991.18

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Solution

The fourth proportional to 89,583.50, 123,573.80 and 55,991.18 is: 77,235.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,583.50 : 123,573.80 = 55,991.18 : x
  2. Step 2: Convert to fraction form
    89,583.50/123,573.80 = 55,991.18/x
  3. Step 3: Cross multiply
    89,583.50x = 123,573.80 × 55,991.18
  4. Step 4: Simplify right side
    89,583.50x = 6,919,042,879.08
  5. Step 5: Solve for x
    x = 6,919,042,879.08/89,583.50
  6. Step 6: Final answer
    x = 77,235.68

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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.