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Finding the Fourth Proportional to 69,699.76, 96,679.20 and 67,310.12

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Solution

The fourth proportional to 69,699.76, 96,679.20 and 67,310.12 is: 93,364.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,699.76 : 96,679.20 = 67,310.12 : x
  2. Step 2: Convert to fraction form
    69,699.76/96,679.20 = 67,310.12/x
  3. Step 3: Cross multiply
    69,699.76x = 96,679.20 × 67,310.12
  4. Step 4: Simplify right side
    69,699.76x = 6,507,488,553.50
  5. Step 5: Solve for x
    x = 6,507,488,553.50/69,699.76
  6. Step 6: Final answer
    x = 93,364.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.