Home / 76,812.30-115,234.65-32,416.20

Finding the Fourth Proportional to 76,812.30, 115,234.65 and 32,416.20

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Solution

The fourth proportional to 76,812.30, 115,234.65 and 32,416.20 is: 48,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,812.30 : 115,234.65 = 32,416.20 : x
  2. Step 2: Convert to fraction form
    76,812.30/115,234.65 = 32,416.20/x
  3. Step 3: Cross multiply
    76,812.30x = 115,234.65 × 32,416.20
  4. Step 4: Simplify right side
    76,812.30x = 3,735,469,461.33
  5. Step 5: Solve for x
    x = 3,735,469,461.33/76,812.30
  6. Step 6: Final answer
    x = 48,631.14

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1.5x scale

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.