Home / 211,837.92-317,756.72-54,066.40

Finding the Fourth Proportional to 211,837.92, 317,756.72 and 54,066.40

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Solution

The fourth proportional to 211,837.92, 317,756.72 and 54,066.40 is: 81,099.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,837.92 : 317,756.72 = 54,066.40 : x
  2. Step 2: Convert to fraction form
    211,837.92/317,756.72 = 54,066.40/x
  3. Step 3: Cross multiply
    211,837.92x = 317,756.72 × 54,066.40
  4. Step 4: Simplify right side
    211,837.92x = 17,179,961,926.21
  5. Step 5: Solve for x
    x = 17,179,961,926.21/211,837.92
  6. Step 6: Final answer
    x = 81,099.56

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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.