Home / 68,025.10-102,001.20-28,537.60

Finding the Fourth Proportional to 68,025.10, 102,001.20 and 28,537.60

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Solution

The fourth proportional to 68,025.10, 102,001.20 and 28,537.60 is: 42,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,025.10 : 102,001.20 = 28,537.60 : x
  2. Step 2: Convert to fraction form
    68,025.10/102,001.20 = 28,537.60/x
  3. Step 3: Cross multiply
    68,025.10x = 102,001.20 × 28,537.60
  4. Step 4: Simplify right side
    68,025.10x = 2,910,869,445.12
  5. Step 5: Solve for x
    x = 2,910,869,445.12/68,025.10
  6. Step 6: Final answer
    x = 42,791.11

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1.5x scale

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.