Home / 76,905.80-115,380.30-37,464.20

Finding the Fourth Proportional to 76,905.80, 115,380.30 and 37,464.20

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Solution

The fourth proportional to 76,905.80, 115,380.30 and 37,464.20 is: 56,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,905.80 : 115,380.30 = 37,464.20 : x
  2. Step 2: Convert to fraction form
    76,905.80/115,380.30 = 37,464.20/x
  3. Step 3: Cross multiply
    76,905.80x = 115,380.30 × 37,464.20
  4. Step 4: Simplify right side
    76,905.80x = 4,322,630,635.26
  5. Step 5: Solve for x
    x = 4,322,630,635.26/76,905.80
  6. Step 6: Final answer
    x = 56,206.82

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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.