Home / 87,563.61-131,364.63-28,405.26

Finding the Fourth Proportional to 87,563.61, 131,364.63 and 28,405.26

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Solution

The fourth proportional to 87,563.61, 131,364.63 and 28,405.26 is: 42,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563.61 : 131,364.63 = 28,405.26 : x
  2. Step 2: Convert to fraction form
    87,563.61/131,364.63 = 28,405.26/x
  3. Step 3: Cross multiply
    87,563.61x = 131,364.63 × 28,405.26
  4. Step 4: Simplify right side
    87,563.61x = 3,731,446,469.95
  5. Step 5: Solve for x
    x = 3,731,446,469.95/87,563.61
  6. Step 6: Final answer
    x = 42,614.12

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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.