Home / 68,412.42-102,654.12-51,767.46

Finding the Fourth Proportional to 68,412.42, 102,654.12 and 51,767.46

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Solution

The fourth proportional to 68,412.42, 102,654.12 and 51,767.46 is: 77,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.42 : 102,654.12 = 51,767.46 : x
  2. Step 2: Convert to fraction form
    68,412.42/102,654.12 = 51,767.46/x
  3. Step 3: Cross multiply
    68,412.42x = 102,654.12 × 51,767.46
  4. Step 4: Simplify right side
    68,412.42x = 5,314,143,050.94
  5. Step 5: Solve for x
    x = 5,314,143,050.94/68,412.42
  6. Step 6: Final answer
    x = 77,678.05

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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.