Home / 56,739.42-78,299.76-31,245.27

Finding the Fourth Proportional to 56,739.42, 78,299.76 and 31,245.27

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Solution

The fourth proportional to 56,739.42, 78,299.76 and 31,245.27 is: 43,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,739.42 : 78,299.76 = 31,245.27 : x
  2. Step 2: Convert to fraction form
    56,739.42/78,299.76 = 31,245.27/x
  3. Step 3: Cross multiply
    56,739.42x = 78,299.76 × 31,245.27
  4. Step 4: Simplify right side
    56,739.42x = 2,446,497,142.14
  5. Step 5: Solve for x
    x = 2,446,497,142.14/56,739.42
  6. Step 6: Final answer
    x = 43,118.12

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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.