Home / 68,768.20-103,152.30-22,025.80

Finding the Fourth Proportional to 68,768.20, 103,152.30 and 22,025.80

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Solution

The fourth proportional to 68,768.20, 103,152.30 and 22,025.80 is: 33,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,768.20 : 103,152.30 = 22,025.80 : x
  2. Step 2: Convert to fraction form
    68,768.20/103,152.30 = 22,025.80/x
  3. Step 3: Cross multiply
    68,768.20x = 103,152.30 × 22,025.80
  4. Step 4: Simplify right side
    68,768.20x = 2,272,011,929.34
  5. Step 5: Solve for x
    x = 2,272,011,929.34/68,768.20
  6. Step 6: Final answer
    x = 33,038.70

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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.