Home / 69,123.20-103,699.44-39,151.52

Finding the Fourth Proportional to 69,123.20, 103,699.44 and 39,151.52

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Solution

The fourth proportional to 69,123.20, 103,699.44 and 39,151.52 is: 58,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,123.20 : 103,699.44 = 39,151.52 : x
  2. Step 2: Convert to fraction form
    69,123.20/103,699.44 = 39,151.52/x
  3. Step 3: Cross multiply
    69,123.20x = 103,699.44 × 39,151.52
  4. Step 4: Simplify right side
    69,123.20x = 4,059,990,699.15
  5. Step 5: Solve for x
    x = 4,059,990,699.15/69,123.20
  6. Step 6: Final answer
    x = 58,735.57

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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.