Home / 211,009.34-316,514.57-53,237.79

Finding the Fourth Proportional to 211,009.34, 316,514.57 and 53,237.79

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Solution

The fourth proportional to 211,009.34, 316,514.57 and 53,237.79 is: 79,856.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009.34 : 316,514.57 = 53,237.79 : x
  2. Step 2: Convert to fraction form
    211,009.34/316,514.57 = 53,237.79/x
  3. Step 3: Cross multiply
    211,009.34x = 316,514.57 × 53,237.79
  4. Step 4: Simplify right side
    211,009.34x = 16,850,535,943.41
  5. Step 5: Solve for x
    x = 16,850,535,943.41/211,009.34
  6. Step 6: Final answer
    x = 79,856.83

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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.