Home / 76,909.51-115,372.47-32,540.74

Finding the Fourth Proportional to 76,909.51, 115,372.47 and 32,540.74

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Solution

The fourth proportional to 76,909.51, 115,372.47 and 32,540.74 is: 48,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,909.51 : 115,372.47 = 32,540.74 : x
  2. Step 2: Convert to fraction form
    76,909.51/115,372.47 = 32,540.74/x
  3. Step 3: Cross multiply
    76,909.51x = 115,372.47 × 32,540.74
  4. Step 4: Simplify right side
    76,909.51x = 3,754,305,549.43
  5. Step 5: Solve for x
    x = 3,754,305,549.43/76,909.51
  6. Step 6: Final answer
    x = 48,814.58

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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.