Home / 212,934.49-319,401.74-55,162.95

Finding the Fourth Proportional to 212,934.49, 319,401.74 and 55,162.95

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Solution

The fourth proportional to 212,934.49, 319,401.74 and 55,162.95 is: 82,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,934.49 : 319,401.74 = 55,162.95 : x
  2. Step 2: Convert to fraction form
    212,934.49/319,401.74 = 55,162.95/x
  3. Step 3: Cross multiply
    212,934.49x = 319,401.74 × 55,162.95
  4. Step 4: Simplify right side
    212,934.49x = 17,619,142,213.53
  5. Step 5: Solve for x
    x = 17,619,142,213.53/212,934.49
  6. Step 6: Final answer
    x = 82,744.43

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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.