Home / 54,780.20-75,596.34-30,579.75

Finding the Fourth Proportional to 54,780.20, 75,596.34 and 30,579.75

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Solution

The fourth proportional to 54,780.20, 75,596.34 and 30,579.75 is: 42,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,780.20 : 75,596.34 = 30,579.75 : x
  2. Step 2: Convert to fraction form
    54,780.20/75,596.34 = 30,579.75/x
  3. Step 3: Cross multiply
    54,780.20x = 75,596.34 × 30,579.75
  4. Step 4: Simplify right side
    54,780.20x = 2,311,717,178.12
  5. Step 5: Solve for x
    x = 2,311,717,178.12/54,780.20
  6. Step 6: Final answer
    x = 42,199.87

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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.