Home / 68,515.20-102,801.60-37,372.80

Finding the Fourth Proportional to 68,515.20, 102,801.60 and 37,372.80

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Solution

The fourth proportional to 68,515.20, 102,801.60 and 37,372.80 is: 56,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,515.20 : 102,801.60 = 37,372.80 : x
  2. Step 2: Convert to fraction form
    68,515.20/102,801.60 = 37,372.80/x
  3. Step 3: Cross multiply
    68,515.20x = 102,801.60 × 37,372.80
  4. Step 4: Simplify right side
    68,515.20x = 3,841,983,636.48
  5. Step 5: Solve for x
    x = 3,841,983,636.48/68,515.20
  6. Step 6: Final answer
    x = 56,074.91

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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.