Home / 87,584.10-131,376.06-28,419.77

Finding the Fourth Proportional to 87,584.10, 131,376.06 and 28,419.77

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Solution

The fourth proportional to 87,584.10, 131,376.06 and 28,419.77 is: 42,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,584.10 : 131,376.06 = 28,419.77 : x
  2. Step 2: Convert to fraction form
    87,584.10/131,376.06 = 28,419.77/x
  3. Step 3: Cross multiply
    87,584.10x = 131,376.06 × 28,419.77
  4. Step 4: Simplify right side
    87,584.10x = 3,733,677,408.71
  5. Step 5: Solve for x
    x = 3,733,677,408.71/87,584.10
  6. Step 6: Final answer
    x = 42,629.63

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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.