Home / 87,864.24-131,817.12-28,699.80

Finding the Fourth Proportional to 87,864.24, 131,817.12 and 28,699.80

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Solution

The fourth proportional to 87,864.24, 131,817.12 and 28,699.80 is: 43,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,864.24 : 131,817.12 = 28,699.80 : x
  2. Step 2: Convert to fraction form
    87,864.24/131,817.12 = 28,699.80/x
  3. Step 3: Cross multiply
    87,864.24x = 131,817.12 × 28,699.80
  4. Step 4: Simplify right side
    87,864.24x = 3,783,124,980.58
  5. Step 5: Solve for x
    x = 3,783,124,980.58/87,864.24
  6. Step 6: Final answer
    x = 43,056.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.