Home / 76,962.80-115,422.60-24,388.40

Finding the Fourth Proportional to 76,962.80, 115,422.60 and 24,388.40

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Solution

The fourth proportional to 76,962.80, 115,422.60 and 24,388.40 is: 36,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,962.80 : 115,422.60 = 24,388.40 : x
  2. Step 2: Convert to fraction form
    76,962.80/115,422.60 = 24,388.40/x
  3. Step 3: Cross multiply
    76,962.80x = 115,422.60 × 24,388.40
  4. Step 4: Simplify right side
    76,962.80x = 2,814,972,537.84
  5. Step 5: Solve for x
    x = 2,814,972,537.84/76,962.80
  6. Step 6: Final answer
    x = 36,575.76

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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.