Home / 87,447.02-131,137.70-28,266.80

Finding the Fourth Proportional to 87,447.02, 131,137.70 and 28,266.80

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Solution

The fourth proportional to 87,447.02, 131,137.70 and 28,266.80 is: 42,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,447.02 : 131,137.70 = 28,266.80 : x
  2. Step 2: Convert to fraction form
    87,447.02/131,137.70 = 28,266.80/x
  3. Step 3: Cross multiply
    87,447.02x = 131,137.70 × 28,266.80
  4. Step 4: Simplify right side
    87,447.02x = 3,706,843,138.36
  5. Step 5: Solve for x
    x = 3,706,843,138.36/87,447.02
  6. Step 6: Final answer
    x = 42,389.59

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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.