Home / 87,548.99-131,342.67-28,390.64

Finding the Fourth Proportional to 87,548.99, 131,342.67 and 28,390.64

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Solution

The fourth proportional to 87,548.99, 131,342.67 and 28,390.64 is: 42,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,548.99 : 131,342.67 = 28,390.64 : x
  2. Step 2: Convert to fraction form
    87,548.99/131,342.67 = 28,390.64/x
  3. Step 3: Cross multiply
    87,548.99x = 131,342.67 × 28,390.64
  4. Step 4: Simplify right side
    87,548.99x = 3,728,901,803.90
  5. Step 5: Solve for x
    x = 3,728,901,803.90/87,548.99
  6. Step 6: Final answer
    x = 42,592.18

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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.