Home / 85,108.20-127,443.60-62,800.80

Finding the Fourth Proportional to 85,108.20, 127,443.60 and 62,800.80

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Solution

The fourth proportional to 85,108.20, 127,443.60 and 62,800.80 is: 94,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,108.20 : 127,443.60 = 62,800.80 : x
  2. Step 2: Convert to fraction form
    85,108.20/127,443.60 = 62,800.80/x
  3. Step 3: Cross multiply
    85,108.20x = 127,443.60 × 62,800.80
  4. Step 4: Simplify right side
    85,108.20x = 8,003,560,034.88
  5. Step 5: Solve for x
    x = 8,003,560,034.88/85,108.20
  6. Step 6: Final answer
    x = 94,039.82

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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.