Home / 69,129.10-103,693.65-34,137.10

Finding the Fourth Proportional to 69,129.10, 103,693.65 and 34,137.10

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Solution

The fourth proportional to 69,129.10, 103,693.65 and 34,137.10 is: 51,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.10 : 103,693.65 = 34,137.10 : x
  2. Step 2: Convert to fraction form
    69,129.10/103,693.65 = 34,137.10/x
  3. Step 3: Cross multiply
    69,129.10x = 103,693.65 × 34,137.10
  4. Step 4: Simplify right side
    69,129.10x = 3,539,800,499.42
  5. Step 5: Solve for x
    x = 3,539,800,499.42/69,129.10
  6. Step 6: Final answer
    x = 51,205.65

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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.