Home / 76,748.12-114,909.61-39,227.39

Finding the Fourth Proportional to 76,748.12, 114,909.61 and 39,227.39

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Solution

The fourth proportional to 76,748.12, 114,909.61 and 39,227.39 is: 58,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,748.12 : 114,909.61 = 39,227.39 : x
  2. Step 2: Convert to fraction form
    76,748.12/114,909.61 = 39,227.39/x
  3. Step 3: Cross multiply
    76,748.12x = 114,909.61 × 39,227.39
  4. Step 4: Simplify right side
    76,748.12x = 4,507,604,086.22
  5. Step 5: Solve for x
    x = 4,507,604,086.22/76,748.12
  6. Step 6: Final answer
    x = 58,732.44

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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.