Home / 211,586.62-317,378.56-53,813.72

Finding the Fourth Proportional to 211,586.62, 317,378.56 and 53,813.72

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Solution

The fourth proportional to 211,586.62, 317,378.56 and 53,813.72 is: 80,720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,586.62 : 317,378.56 = 53,813.72 : x
  2. Step 2: Convert to fraction form
    211,586.62/317,378.56 = 53,813.72/x
  3. Step 3: Cross multiply
    211,586.62x = 317,378.56 × 53,813.72
  4. Step 4: Simplify right side
    211,586.62x = 17,079,320,961.84
  5. Step 5: Solve for x
    x = 17,079,320,961.84/211,586.62
  6. Step 6: Final answer
    x = 80,720.23

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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.