Home / 73,219.20-109,585.80-53,171.70

Finding the Fourth Proportional to 73,219.20, 109,585.80 and 53,171.70

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Solution

The fourth proportional to 73,219.20, 109,585.80 and 53,171.70 is: 79,581.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,219.20 : 109,585.80 = 53,171.70 : x
  2. Step 2: Convert to fraction form
    73,219.20/109,585.80 = 53,171.70/x
  3. Step 3: Cross multiply
    73,219.20x = 109,585.80 × 53,171.70
  4. Step 4: Simplify right side
    73,219.20x = 5,826,863,281.86
  5. Step 5: Solve for x
    x = 5,826,863,281.86/73,219.20
  6. Step 6: Final answer
    x = 79,581.08

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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.