Home / 56,663.21-78,197.09-31,171.53

Finding the Fourth Proportional to 56,663.21, 78,197.09 and 31,171.53

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Solution

The fourth proportional to 56,663.21, 78,197.09 and 31,171.53 is: 43,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,663.21 : 78,197.09 = 31,171.53 : x
  2. Step 2: Convert to fraction form
    56,663.21/78,197.09 = 31,171.53/x
  3. Step 3: Cross multiply
    56,663.21x = 78,197.09 × 31,171.53
  4. Step 4: Simplify right side
    56,663.21x = 2,437,522,936.85
  5. Step 5: Solve for x
    x = 2,437,522,936.85/56,663.21
  6. Step 6: Final answer
    x = 43,017.73

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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.