Home / 211,728.72-317,584.28-53,961.04

Finding the Fourth Proportional to 211,728.72, 317,584.28 and 53,961.04

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Solution

The fourth proportional to 211,728.72, 317,584.28 and 53,961.04 is: 80,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,728.72 : 317,584.28 = 53,961.04 : x
  2. Step 2: Convert to fraction form
    211,728.72/317,584.28 = 53,961.04/x
  3. Step 3: Cross multiply
    211,728.72x = 317,584.28 × 53,961.04
  4. Step 4: Simplify right side
    211,728.72x = 17,137,178,036.45
  5. Step 5: Solve for x
    x = 17,137,178,036.45/211,728.72
  6. Step 6: Final answer
    x = 80,939.32

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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.