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Finding the Fourth Proportional to 69,980.30, 96,570.88 and 38,149.19

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Solution

The fourth proportional to 69,980.30, 96,570.88 and 38,149.19 is: 52,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,980.30 : 96,570.88 = 38,149.19 : x
  2. Step 2: Convert to fraction form
    69,980.30/96,570.88 = 38,149.19/x
  3. Step 3: Cross multiply
    69,980.30x = 96,570.88 × 38,149.19
  4. Step 4: Simplify right side
    69,980.30x = 3,684,100,849.59
  5. Step 5: Solve for x
    x = 3,684,100,849.59/69,980.30
  6. Step 6: Final answer
    x = 52,644.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.