Home / 56,687.99-78,229.53-31,537.49

Finding the Fourth Proportional to 56,687.99, 78,229.53 and 31,537.49

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Solution

The fourth proportional to 56,687.99, 78,229.53 and 31,537.49 is: 43,521.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.99 : 78,229.53 = 31,537.49 : x
  2. Step 2: Convert to fraction form
    56,687.99/78,229.53 = 31,537.49/x
  3. Step 3: Cross multiply
    56,687.99x = 78,229.53 × 31,537.49
  4. Step 4: Simplify right side
    56,687.99x = 2,467,162,862.39
  5. Step 5: Solve for x
    x = 2,467,162,862.39/56,687.99
  6. Step 6: Final answer
    x = 43,521.79

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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.