Home / 87,615.40-131,544.60-56,219.80

Finding the Fourth Proportional to 87,615.40, 131,544.60 and 56,219.80

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Solution

The fourth proportional to 87,615.40, 131,544.60 and 56,219.80 is: 84,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.40 : 131,544.60 = 56,219.80 : x
  2. Step 2: Convert to fraction form
    87,615.40/131,544.60 = 56,219.80/x
  3. Step 3: Cross multiply
    87,615.40x = 131,544.60 × 56,219.80
  4. Step 4: Simplify right side
    87,615.40x = 7,395,411,103.08
  5. Step 5: Solve for x
    x = 7,395,411,103.08/87,615.40
  6. Step 6: Final answer
    x = 84,407.66

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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.