Home / 87,486.99-131,251.31-28,322.67

Finding the Fourth Proportional to 87,486.99, 131,251.31 and 28,322.67

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Solution

The fourth proportional to 87,486.99, 131,251.31 and 28,322.67 is: 42,490.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,486.99 : 131,251.31 = 28,322.67 : x
  2. Step 2: Convert to fraction form
    87,486.99/131,251.31 = 28,322.67/x
  3. Step 3: Cross multiply
    87,486.99x = 131,251.31 × 28,322.67
  4. Step 4: Simplify right side
    87,486.99x = 3,717,387,398.58
  5. Step 5: Solve for x
    x = 3,717,387,398.58/87,486.99
  6. Step 6: Final answer
    x = 42,490.75

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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.