Home / 76,670.20-115,005.30-24,079.60

Finding the Fourth Proportional to 76,670.20, 115,005.30 and 24,079.60

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Solution

The fourth proportional to 76,670.20, 115,005.30 and 24,079.60 is: 36,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,670.20 : 115,005.30 = 24,079.60 : x
  2. Step 2: Convert to fraction form
    76,670.20/115,005.30 = 24,079.60/x
  3. Step 3: Cross multiply
    76,670.20x = 115,005.30 × 24,079.60
  4. Step 4: Simplify right side
    76,670.20x = 2,769,281,621.88
  5. Step 5: Solve for x
    x = 2,769,281,621.88/76,670.20
  6. Step 6: Final answer
    x = 36,119.40

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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.