Home / 87,195.69-130,805.82-28,011.51

Finding the Fourth Proportional to 87,195.69, 130,805.82 and 28,011.51

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Solution

The fourth proportional to 87,195.69, 130,805.82 and 28,011.51 is: 42,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,195.69 : 130,805.82 = 28,011.51 : x
  2. Step 2: Convert to fraction form
    87,195.69/130,805.82 = 28,011.51/x
  3. Step 3: Cross multiply
    87,195.69x = 130,805.82 × 28,011.51
  4. Step 4: Simplify right side
    87,195.69x = 3,664,068,534.99
  5. Step 5: Solve for x
    x = 3,664,068,534.99/87,195.69
  6. Step 6: Final answer
    x = 42,021.21

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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.