Home / 63,553.44-87,667.29-39,638.61

Finding the Fourth Proportional to 63,553.44, 87,667.29 and 39,638.61

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Solution

The fourth proportional to 63,553.44, 87,667.29 and 39,638.61 is: 54,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,553.44 : 87,667.29 = 39,638.61 : x
  2. Step 2: Convert to fraction form
    63,553.44/87,667.29 = 39,638.61/x
  3. Step 3: Cross multiply
    63,553.44x = 87,667.29 × 39,638.61
  4. Step 4: Simplify right side
    63,553.44x = 3,475,009,518.07
  5. Step 5: Solve for x
    x = 3,475,009,518.07/63,553.44
  6. Step 6: Final answer
    x = 54,678.54

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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.