Home / 56,668.88-78,199.97-31,171.13

Finding the Fourth Proportional to 56,668.88, 78,199.97 and 31,171.13

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Solution

The fourth proportional to 56,668.88, 78,199.97 and 31,171.13 is: 43,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.88 : 78,199.97 = 31,171.13 : x
  2. Step 2: Convert to fraction form
    56,668.88/78,199.97 = 31,171.13/x
  3. Step 3: Cross multiply
    56,668.88x = 78,199.97 × 31,171.13
  4. Step 4: Simplify right side
    56,668.88x = 2,437,581,514.09
  5. Step 5: Solve for x
    x = 2,437,581,514.09/56,668.88
  6. Step 6: Final answer
    x = 43,014.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.