Home / 68,499.06-102,748.32-21,755.58

Finding the Fourth Proportional to 68,499.06, 102,748.32 and 21,755.58

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Solution

The fourth proportional to 68,499.06, 102,748.32 and 21,755.58 is: 32,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,499.06 : 102,748.32 = 21,755.58 : x
  2. Step 2: Convert to fraction form
    68,499.06/102,748.32 = 21,755.58/x
  3. Step 3: Cross multiply
    68,499.06x = 102,748.32 × 21,755.58
  4. Step 4: Simplify right side
    68,499.06x = 2,235,349,295.63
  5. Step 5: Solve for x
    x = 2,235,349,295.63/68,499.06
  6. Step 6: Final answer
    x = 32,633.28

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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.