Home / 69,186.42-103,678.64-30,671.44

Finding the Fourth Proportional to 69,186.42, 103,678.64 and 30,671.44

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Solution

The fourth proportional to 69,186.42, 103,678.64 and 30,671.44 is: 45,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,186.42 : 103,678.64 = 30,671.44 : x
  2. Step 2: Convert to fraction form
    69,186.42/103,678.64 = 30,671.44/x
  3. Step 3: Cross multiply
    69,186.42x = 103,678.64 × 30,671.44
  4. Step 4: Simplify right side
    69,186.42x = 3,179,973,186.04
  5. Step 5: Solve for x
    x = 3,179,973,186.04/69,186.42
  6. Step 6: Final answer
    x = 45,962.39

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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.