Home / 212,629.68-318,950.66-54,858.13

Finding the Fourth Proportional to 212,629.68, 318,950.66 and 54,858.13

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Solution

The fourth proportional to 212,629.68, 318,950.66 and 54,858.13 is: 82,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,629.68 : 318,950.66 = 54,858.13 : x
  2. Step 2: Convert to fraction form
    212,629.68/318,950.66 = 54,858.13/x
  3. Step 3: Cross multiply
    212,629.68x = 318,950.66 × 54,858.13
  4. Step 4: Simplify right side
    212,629.68x = 17,497,035,175.11
  5. Step 5: Solve for x
    x = 17,497,035,175.11/212,629.68
  6. Step 6: Final answer
    x = 82,288.77

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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.