Home / 76,613.48-115,027.86-39,200.38

Finding the Fourth Proportional to 76,613.48, 115,027.86 and 39,200.38

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Solution

The fourth proportional to 76,613.48, 115,027.86 and 39,200.38 is: 58,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,613.48 : 115,027.86 = 39,200.38 : x
  2. Step 2: Convert to fraction form
    76,613.48/115,027.86 = 39,200.38/x
  3. Step 3: Cross multiply
    76,613.48x = 115,027.86 × 39,200.38
  4. Step 4: Simplify right side
    76,613.48x = 4,509,135,822.59
  5. Step 5: Solve for x
    x = 4,509,135,822.59/76,613.48
  6. Step 6: Final answer
    x = 58,855.65

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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.