Home / 68,599.20-102,854.40-29,145.60

Finding the Fourth Proportional to 68,599.20, 102,854.40 and 29,145.60

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Solution

The fourth proportional to 68,599.20, 102,854.40 and 29,145.60 is: 43,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,599.20 : 102,854.40 = 29,145.60 : x
  2. Step 2: Convert to fraction form
    68,599.20/102,854.40 = 29,145.60/x
  3. Step 3: Cross multiply
    68,599.20x = 102,854.40 × 29,145.60
  4. Step 4: Simplify right side
    68,599.20x = 2,997,753,200.64
  5. Step 5: Solve for x
    x = 2,997,753,200.64/68,599.20
  6. Step 6: Final answer
    x = 43,699.54

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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.