Home / 55,509.83-76,601.67-31,644.19

Finding the Fourth Proportional to 55,509.83, 76,601.67 and 31,644.19

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Solution

The fourth proportional to 55,509.83, 76,601.67 and 31,644.19 is: 43,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,509.83 : 76,601.67 = 31,644.19 : x
  2. Step 2: Convert to fraction form
    55,509.83/76,601.67 = 31,644.19/x
  3. Step 3: Cross multiply
    55,509.83x = 76,601.67 × 31,644.19
  4. Step 4: Simplify right side
    55,509.83x = 2,423,997,991.30
  5. Step 5: Solve for x
    x = 2,423,997,991.30/55,509.83
  6. Step 6: Final answer
    x = 43,667.91

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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.