Home / 87,317.69-130,963.17-28,147.19

Finding the Fourth Proportional to 87,317.69, 130,963.17 and 28,147.19

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Solution

The fourth proportional to 87,317.69, 130,963.17 and 28,147.19 is: 42,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,317.69 : 130,963.17 = 28,147.19 : x
  2. Step 2: Convert to fraction form
    87,317.69/130,963.17 = 28,147.19/x
  3. Step 3: Cross multiply
    87,317.69x = 130,963.17 × 28,147.19
  4. Step 4: Simplify right side
    87,317.69x = 3,686,245,228.99
  5. Step 5: Solve for x
    x = 3,686,245,228.99/87,317.69
  6. Step 6: Final answer
    x = 42,216.48

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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.