Home / 211,726.72-317,581.28-53,959.04

Finding the Fourth Proportional to 211,726.72, 317,581.28 and 53,959.04

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Solution

The fourth proportional to 211,726.72, 317,581.28 and 53,959.04 is: 80,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,726.72 : 317,581.28 = 53,959.04 : x
  2. Step 2: Convert to fraction form
    211,726.72/317,581.28 = 53,959.04/x
  3. Step 3: Cross multiply
    211,726.72x = 317,581.28 × 53,959.04
  4. Step 4: Simplify right side
    211,726.72x = 17,136,380,990.77
  5. Step 5: Solve for x
    x = 17,136,380,990.77/211,726.72
  6. Step 6: Final answer
    x = 80,936.32

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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.