Home / 68,580.10-102,836.13-21,826.90

Finding the Fourth Proportional to 68,580.10, 102,836.13 and 21,826.90

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Solution

The fourth proportional to 68,580.10, 102,836.13 and 21,826.90 is: 32,729.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,580.10 : 102,836.13 = 21,826.90 : x
  2. Step 2: Convert to fraction form
    68,580.10/102,836.13 = 21,826.90/x
  3. Step 3: Cross multiply
    68,580.10x = 102,836.13 × 21,826.90
  4. Step 4: Simplify right side
    68,580.10x = 2,244,593,925.90
  5. Step 5: Solve for x
    x = 2,244,593,925.90/68,580.10
  6. Step 6: Final answer
    x = 32,729.52

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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.