Home / 68,535.10-102,766.20-29,047.60

Finding the Fourth Proportional to 68,535.10, 102,766.20 and 29,047.60

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Solution

The fourth proportional to 68,535.10, 102,766.20 and 29,047.60 is: 43,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,535.10 : 102,766.20 = 29,047.60 : x
  2. Step 2: Convert to fraction form
    68,535.10/102,766.20 = 29,047.60/x
  3. Step 3: Cross multiply
    68,535.10x = 102,766.20 × 29,047.60
  4. Step 4: Simplify right side
    68,535.10x = 2,985,111,471.12
  5. Step 5: Solve for x
    x = 2,985,111,471.12/68,535.10
  6. Step 6: Final answer
    x = 43,555.95

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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.