Home / 76,556.80-114,718.56-39,115.36

Finding the Fourth Proportional to 76,556.80, 114,718.56 and 39,115.36

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Solution

The fourth proportional to 76,556.80, 114,718.56 and 39,115.36 is: 58,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,556.80 : 114,718.56 = 39,115.36 : x
  2. Step 2: Convert to fraction form
    76,556.80/114,718.56 = 39,115.36/x
  3. Step 3: Cross multiply
    76,556.80x = 114,718.56 × 39,115.36
  4. Step 4: Simplify right side
    76,556.80x = 4,487,257,773.08
  5. Step 5: Solve for x
    x = 4,487,257,773.08/76,556.80
  6. Step 6: Final answer
    x = 58,613.44

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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.