Home / 211,849.29-317,784.87-54,079.11

Finding the Fourth Proportional to 211,849.29, 317,784.87 and 54,079.11

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Solution

The fourth proportional to 211,849.29, 317,784.87 and 54,079.11 is: 81,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,849.29 : 317,784.87 = 54,079.11 : x
  2. Step 2: Convert to fraction form
    211,849.29/317,784.87 = 54,079.11/x
  3. Step 3: Cross multiply
    211,849.29x = 317,784.87 × 54,079.11
  4. Step 4: Simplify right side
    211,849.29x = 17,185,522,941.07
  5. Step 5: Solve for x
    x = 17,185,522,941.07/211,849.29
  6. Step 6: Final answer
    x = 81,121.46

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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.