Home / 211,587.63-317,380.05-53,814.72

Finding the Fourth Proportional to 211,587.63, 317,380.05 and 53,814.72

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Solution

The fourth proportional to 211,587.63, 317,380.05 and 53,814.72 is: 80,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,587.63 : 317,380.05 = 53,814.72 : x
  2. Step 2: Convert to fraction form
    211,587.63/317,380.05 = 53,814.72/x
  3. Step 3: Cross multiply
    211,587.63x = 317,380.05 × 53,814.72
  4. Step 4: Simplify right side
    211,587.63x = 17,079,718,524.34
  5. Step 5: Solve for x
    x = 17,079,718,524.34/211,587.63
  6. Step 6: Final answer
    x = 80,721.73

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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.