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Finding the Fourth Proportional to 64,453.80, 96,680.70 and 51,234.60

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Solution

The fourth proportional to 64,453.80, 96,680.70 and 51,234.60 is: 76,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,453.80 : 96,680.70 = 51,234.60 : x
  2. Step 2: Convert to fraction form
    64,453.80/96,680.70 = 51,234.60/x
  3. Step 3: Cross multiply
    64,453.80x = 96,680.70 × 51,234.60
  4. Step 4: Simplify right side
    64,453.80x = 4,953,396,992.22
  5. Step 5: Solve for x
    x = 4,953,396,992.22/64,453.80
  6. Step 6: Final answer
    x = 76,851.90

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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.