Home / 68,385.83-102,568.48-21,632.63

Finding the Fourth Proportional to 68,385.83, 102,568.48 and 21,632.63

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Solution

The fourth proportional to 68,385.83, 102,568.48 and 21,632.63 is: 32,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,385.83 : 102,568.48 = 21,632.63 : x
  2. Step 2: Convert to fraction form
    68,385.83/102,568.48 = 21,632.63/x
  3. Step 3: Cross multiply
    68,385.83x = 102,568.48 × 21,632.63
  4. Step 4: Simplify right side
    68,385.83x = 2,218,825,410.58
  5. Step 5: Solve for x
    x = 2,218,825,410.58/68,385.83
  6. Step 6: Final answer
    x = 32,445.69

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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.