Home / 211,581.62-317,371.06-53,808.71

Finding the Fourth Proportional to 211,581.62, 317,371.06 and 53,808.71

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Solution

The fourth proportional to 211,581.62, 317,371.06 and 53,808.71 is: 80,712.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,581.62 : 317,371.06 = 53,808.71 : x
  2. Step 2: Convert to fraction form
    211,581.62/317,371.06 = 53,808.71/x
  3. Step 3: Cross multiply
    211,581.62x = 317,371.06 × 53,808.71
  4. Step 4: Simplify right side
    211,581.62x = 17,077,325,810.34
  5. Step 5: Solve for x
    x = 17,077,325,810.34/211,581.62
  6. Step 6: Final answer
    x = 80,712.71

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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.