Home / 87,421.20-131,131.80-32,038.80

Finding the Fourth Proportional to 87,421.20, 131,131.80 and 32,038.80

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Solution

The fourth proportional to 87,421.20, 131,131.80 and 32,038.80 is: 48,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,421.20 : 131,131.80 = 32,038.80 : x
  2. Step 2: Convert to fraction form
    87,421.20/131,131.80 = 32,038.80/x
  3. Step 3: Cross multiply
    87,421.20x = 131,131.80 × 32,038.80
  4. Step 4: Simplify right side
    87,421.20x = 4,201,305,513.84
  5. Step 5: Solve for x
    x = 4,201,305,513.84/87,421.20
  6. Step 6: Final answer
    x = 48,058.20

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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.