Home / 87,984.63-131,975.06-21,425.13

Finding the Fourth Proportional to 87,984.63, 131,975.06 and 21,425.13

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Solution

The fourth proportional to 87,984.63, 131,975.06 and 21,425.13 is: 32,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984.63 : 131,975.06 = 21,425.13 : x
  2. Step 2: Convert to fraction form
    87,984.63/131,975.06 = 21,425.13/x
  3. Step 3: Cross multiply
    87,984.63x = 131,975.06 × 21,425.13
  4. Step 4: Simplify right side
    87,984.63x = 2,827,582,710.13
  5. Step 5: Solve for x
    x = 2,827,582,710.13/87,984.63
  6. Step 6: Final answer
    x = 32,137.23

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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.