Home / 212,046.27-318,069.19-54,274.47

Finding the Fourth Proportional to 212,046.27, 318,069.19 and 54,274.47

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Solution

The fourth proportional to 212,046.27, 318,069.19 and 54,274.47 is: 81,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,046.27 : 318,069.19 = 54,274.47 : x
  2. Step 2: Convert to fraction form
    212,046.27/318,069.19 = 54,274.47/x
  3. Step 3: Cross multiply
    212,046.27x = 318,069.19 × 54,274.47
  4. Step 4: Simplify right side
    212,046.27x = 17,263,036,710.58
  5. Step 5: Solve for x
    x = 17,263,036,710.58/212,046.27
  6. Step 6: Final answer
    x = 81,411.65

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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.