Home / 54,787.34-75,608.78-30,913.90

Finding the Fourth Proportional to 54,787.34, 75,608.78 and 30,913.90

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Solution

The fourth proportional to 54,787.34, 75,608.78 and 30,913.90 is: 42,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,787.34 : 75,608.78 = 30,913.90 : x
  2. Step 2: Convert to fraction form
    54,787.34/75,608.78 = 30,913.90/x
  3. Step 3: Cross multiply
    54,787.34x = 75,608.78 × 30,913.90
  4. Step 4: Simplify right side
    54,787.34x = 2,337,361,920.45
  5. Step 5: Solve for x
    x = 2,337,361,920.45/54,787.34
  6. Step 6: Final answer
    x = 42,662.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.