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Finding the Fourth Proportional to 68,650.44, 102,977.46 and 21,903.32

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Solution

The fourth proportional to 68,650.44, 102,977.46 and 21,903.32 is: 32,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,650.44 : 102,977.46 = 21,903.32 : x
  2. Step 2: Convert to fraction form
    68,650.44/102,977.46 = 21,903.32/x
  3. Step 3: Cross multiply
    68,650.44x = 102,977.46 × 21,903.32
  4. Step 4: Simplify right side
    68,650.44x = 2,255,547,744.28
  5. Step 5: Solve for x
    x = 2,255,547,744.28/68,650.44
  6. Step 6: Final answer
    x = 32,855.55

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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.