Home / 87,748.62-131,636.64-28,570.36

Finding the Fourth Proportional to 87,748.62, 131,636.64 and 28,570.36

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Solution

The fourth proportional to 87,748.62, 131,636.64 and 28,570.36 is: 42,860.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,748.62 : 131,636.64 = 28,570.36 : x
  2. Step 2: Convert to fraction form
    87,748.62/131,636.64 = 28,570.36/x
  3. Step 3: Cross multiply
    87,748.62x = 131,636.64 × 28,570.36
  4. Step 4: Simplify right side
    87,748.62x = 3,760,906,193.99
  5. Step 5: Solve for x
    x = 3,760,906,193.99/87,748.62
  6. Step 6: Final answer
    x = 42,860.00

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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.