Home / 212,013.46-318,018.57-54,241.66

Finding the Fourth Proportional to 212,013.46, 318,018.57 and 54,241.66

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Solution

The fourth proportional to 212,013.46, 318,018.57 and 54,241.66 is: 81,362.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,013.46 : 318,018.57 = 54,241.66 : x
  2. Step 2: Convert to fraction form
    212,013.46/318,018.57 = 54,241.66/x
  3. Step 3: Cross multiply
    212,013.46x = 318,018.57 × 54,241.66
  4. Step 4: Simplify right side
    212,013.46x = 17,249,855,147.63
  5. Step 5: Solve for x
    x = 17,249,855,147.63/212,013.46
  6. Step 6: Final answer
    x = 81,362.08

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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.