Home / 211,011.34-316,517.57-53,239.79

Finding the Fourth Proportional to 211,011.34, 316,517.57 and 53,239.79

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Solution

The fourth proportional to 211,011.34, 316,517.57 and 53,239.79 is: 79,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,011.34 : 316,517.57 = 53,239.79 : x
  2. Step 2: Convert to fraction form
    211,011.34/316,517.57 = 53,239.79/x
  3. Step 3: Cross multiply
    211,011.34x = 316,517.57 × 53,239.79
  4. Step 4: Simplify right side
    211,011.34x = 16,851,328,958.11
  5. Step 5: Solve for x
    x = 16,851,328,958.11/211,011.34
  6. Step 6: Final answer
    x = 79,859.83

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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.