Home / 36,439.84-54,721.20-34,569.28

Finding the Fourth Proportional to 36,439.84, 54,721.20 and 34,569.28

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Solution

The fourth proportional to 36,439.84, 54,721.20 and 34,569.28 is: 51,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,439.84 : 54,721.20 = 34,569.28 : x
  2. Step 2: Convert to fraction form
    36,439.84/54,721.20 = 34,569.28/x
  3. Step 3: Cross multiply
    36,439.84x = 54,721.20 × 34,569.28
  4. Step 4: Simplify right side
    36,439.84x = 1,891,672,484.74
  5. Step 5: Solve for x
    x = 1,891,672,484.74/36,439.84
  6. Step 6: Final answer
    x = 51,912.21

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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.