Home / 87,851.76-131,783.48-30,918.80

Finding the Fourth Proportional to 87,851.76, 131,783.48 and 30,918.80

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Solution

The fourth proportional to 87,851.76, 131,783.48 and 30,918.80 is: 46,380.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.76 : 131,783.48 = 30,918.80 : x
  2. Step 2: Convert to fraction form
    87,851.76/131,783.48 = 30,918.80/x
  3. Step 3: Cross multiply
    87,851.76x = 131,783.48 × 30,918.80
  4. Step 4: Simplify right side
    87,851.76x = 4,074,587,061.42
  5. Step 5: Solve for x
    x = 4,074,587,061.42/87,851.76
  6. Step 6: Final answer
    x = 46,380.26

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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.