Home / 212,007.84-318,010.12-54,236.04

Finding the Fourth Proportional to 212,007.84, 318,010.12 and 54,236.04

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Solution

The fourth proportional to 212,007.84, 318,010.12 and 54,236.04 is: 81,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,007.84 : 318,010.12 = 54,236.04 : x
  2. Step 2: Convert to fraction form
    212,007.84/318,010.12 = 54,236.04/x
  3. Step 3: Cross multiply
    212,007.84x = 318,010.12 × 54,236.04
  4. Step 4: Simplify right side
    212,007.84x = 17,247,609,588.72
  5. Step 5: Solve for x
    x = 17,247,609,588.72/212,007.84
  6. Step 6: Final answer
    x = 81,353.64

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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.