Home / 212,329.84-318,505.92-54,559.36

Finding the Fourth Proportional to 212,329.84, 318,505.92 and 54,559.36

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Solution

The fourth proportional to 212,329.84, 318,505.92 and 54,559.36 is: 81,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,329.84 : 318,505.92 = 54,559.36 : x
  2. Step 2: Convert to fraction form
    212,329.84/318,505.92 = 54,559.36/x
  3. Step 3: Cross multiply
    212,329.84x = 318,505.92 × 54,559.36
  4. Step 4: Simplify right side
    212,329.84x = 17,377,479,151.41
  5. Step 5: Solve for x
    x = 17,377,479,151.41/212,329.84
  6. Step 6: Final answer
    x = 81,841.91

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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.