Home / 87,459.24-131,285.98-45,328.04

Finding the Fourth Proportional to 87,459.24, 131,285.98 and 45,328.04

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Solution

The fourth proportional to 87,459.24, 131,285.98 and 45,328.04 is: 68,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,459.24 : 131,285.98 = 45,328.04 : x
  2. Step 2: Convert to fraction form
    87,459.24/131,285.98 = 45,328.04/x
  3. Step 3: Cross multiply
    87,459.24x = 131,285.98 × 45,328.04
  4. Step 4: Simplify right side
    87,459.24x = 5,950,936,152.88
  5. Step 5: Solve for x
    x = 5,950,936,152.88/87,459.24
  6. Step 6: Final answer
    x = 68,042.39

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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.