Home / 54,793.85-75,617.79-30,920.54

Finding the Fourth Proportional to 54,793.85, 75,617.79 and 30,920.54

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Solution

The fourth proportional to 54,793.85, 75,617.79 and 30,920.54 is: 42,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,793.85 : 75,617.79 = 30,920.54 : x
  2. Step 2: Convert to fraction form
    54,793.85/75,617.79 = 30,920.54/x
  3. Step 3: Cross multiply
    54,793.85x = 75,617.79 × 30,920.54
  4. Step 4: Simplify right side
    54,793.85x = 2,338,142,900.41
  5. Step 5: Solve for x
    x = 2,338,142,900.41/54,793.85
  6. Step 6: Final answer
    x = 42,671.63

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1.5x scale

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.