Home / 211,143.12-316,714.68-53,371.57

Finding the Fourth Proportional to 211,143.12, 316,714.68 and 53,371.57

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Solution

The fourth proportional to 211,143.12, 316,714.68 and 53,371.57 is: 80,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,143.12 : 316,714.68 = 53,371.57 : x
  2. Step 2: Convert to fraction form
    211,143.12/316,714.68 = 53,371.57/x
  3. Step 3: Cross multiply
    211,143.12x = 316,714.68 × 53,371.57
  4. Step 4: Simplify right side
    211,143.12x = 16,903,560,331.41
  5. Step 5: Solve for x
    x = 16,903,560,331.41/211,143.12
  6. Step 6: Final answer
    x = 80,057.36

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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.