Home / 87,583.10-131,374.56-28,418.77

Finding the Fourth Proportional to 87,583.10, 131,374.56 and 28,418.77

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Solution

The fourth proportional to 87,583.10, 131,374.56 and 28,418.77 is: 42,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.10 : 131,374.56 = 28,418.77 : x
  2. Step 2: Convert to fraction form
    87,583.10/131,374.56 = 28,418.77/x
  3. Step 3: Cross multiply
    87,583.10x = 131,374.56 × 28,418.77
  4. Step 4: Simplify right side
    87,583.10x = 3,733,502,747.62
  5. Step 5: Solve for x
    x = 3,733,502,747.62/87,583.10
  6. Step 6: Final answer
    x = 42,628.12

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1.5x scale

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.