Home / 211,837.12-317,755.40-54,065.58

Finding the Fourth Proportional to 211,837.12, 317,755.40 and 54,065.58

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Solution

The fourth proportional to 211,837.12, 317,755.40 and 54,065.58 is: 81,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,837.12 : 317,755.40 = 54,065.58 : x
  2. Step 2: Convert to fraction form
    211,837.12/317,755.40 = 54,065.58/x
  3. Step 3: Cross multiply
    211,837.12x = 317,755.40 × 54,065.58
  4. Step 4: Simplify right side
    211,837.12x = 17,179,629,999.13
  5. Step 5: Solve for x
    x = 17,179,629,999.13/211,837.12
  6. Step 6: Final answer
    x = 81,098.30

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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.