Home / 87,052.86-120,005.82-61,479.54

Finding the Fourth Proportional to 87,052.86, 120,005.82 and 61,479.54

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Solution

The fourth proportional to 87,052.86, 120,005.82 and 61,479.54 is: 84,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,052.86 : 120,005.82 = 61,479.54 : x
  2. Step 2: Convert to fraction form
    87,052.86/120,005.82 = 61,479.54/x
  3. Step 3: Cross multiply
    87,052.86x = 120,005.82 × 61,479.54
  4. Step 4: Simplify right side
    87,052.86x = 7,377,902,610.92
  5. Step 5: Solve for x
    x = 7,377,902,610.92/87,052.86
  6. Step 6: Final answer
    x = 84,751.98

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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.