Home / 87,577.66-131,384.94-28,408.72

Finding the Fourth Proportional to 87,577.66, 131,384.94 and 28,408.72

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Solution

The fourth proportional to 87,577.66, 131,384.94 and 28,408.72 is: 42,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.66 : 131,384.94 = 28,408.72 : x
  2. Step 2: Convert to fraction form
    87,577.66/131,384.94 = 28,408.72/x
  3. Step 3: Cross multiply
    87,577.66x = 131,384.94 × 28,408.72
  4. Step 4: Simplify right side
    87,577.66x = 3,732,477,972.68
  5. Step 5: Solve for x
    x = 3,732,477,972.68/87,577.66
  6. Step 6: Final answer
    x = 42,619.06

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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.