Home / 211,010.85-316,516.80-53,239.29

Finding the Fourth Proportional to 211,010.85, 316,516.80 and 53,239.29

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Solution

The fourth proportional to 211,010.85, 316,516.80 and 53,239.29 is: 79,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,010.85 : 316,516.80 = 53,239.29 : x
  2. Step 2: Convert to fraction form
    211,010.85/316,516.80 = 53,239.29/x
  3. Step 3: Cross multiply
    211,010.85x = 316,516.80 × 53,239.29
  4. Step 4: Simplify right side
    211,010.85x = 16,851,129,705.07
  5. Step 5: Solve for x
    x = 16,851,129,705.07/211,010.85
  6. Step 6: Final answer
    x = 79,859.07

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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.