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Finding the Fourth Proportional to 69,697.78, 96,676.43 and 67,308.16

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Solution

The fourth proportional to 69,697.78, 96,676.43 and 67,308.16 is: 93,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,697.78 : 96,676.43 = 67,308.16 : x
  2. Step 2: Convert to fraction form
    69,697.78/96,676.43 = 67,308.16/x
  3. Step 3: Cross multiply
    69,697.78x = 96,676.43 × 67,308.16
  4. Step 4: Simplify right side
    69,697.78x = 6,507,112,618.67
  5. Step 5: Solve for x
    x = 6,507,112,618.67/69,697.78
  6. Step 6: Final answer
    x = 93,361.83

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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.