Home / 211,891.40-317,837.06-54,114.20

Finding the Fourth Proportional to 211,891.40, 317,837.06 and 54,114.20

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Solution

The fourth proportional to 211,891.40, 317,837.06 and 54,114.20 is: 81,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,891.40 : 317,837.06 = 54,114.20 : x
  2. Step 2: Convert to fraction form
    211,891.40/317,837.06 = 54,114.20/x
  3. Step 3: Cross multiply
    211,891.40x = 317,837.06 × 54,114.20
  4. Step 4: Simplify right side
    211,891.40x = 17,199,498,232.25
  5. Step 5: Solve for x
    x = 17,199,498,232.25/211,891.40
  6. Step 6: Final answer
    x = 81,171.29

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1.5x scale

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.