Home / 80,579.56-120,871.69-38,464.07

Finding the Fourth Proportional to 80,579.56, 120,871.69 and 38,464.07

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Solution

The fourth proportional to 80,579.56, 120,871.69 and 38,464.07 is: 57,697.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,579.56 : 120,871.69 = 38,464.07 : x
  2. Step 2: Convert to fraction form
    80,579.56/120,871.69 = 38,464.07/x
  3. Step 3: Cross multiply
    80,579.56x = 120,871.69 × 38,464.07
  4. Step 4: Simplify right side
    80,579.56x = 4,649,216,661.02
  5. Step 5: Solve for x
    x = 4,649,216,661.02/80,579.56
  6. Step 6: Final answer
    x = 57,697.22

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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.