Home / 87,805.93-131,628.16-31,632.30

Finding the Fourth Proportional to 87,805.93, 131,628.16 and 31,632.30

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Solution

The fourth proportional to 87,805.93, 131,628.16 and 31,632.30 is: 47,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,805.93 : 131,628.16 = 31,632.30 : x
  2. Step 2: Convert to fraction form
    87,805.93/131,628.16 = 31,632.30/x
  3. Step 3: Cross multiply
    87,805.93x = 131,628.16 × 31,632.30
  4. Step 4: Simplify right side
    87,805.93x = 4,163,701,287.41
  5. Step 5: Solve for x
    x = 4,163,701,287.41/87,805.93
  6. Step 6: Final answer
    x = 47,419.37

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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.