Home / 56,817.52-78,408.68-31,324.79

Finding the Fourth Proportional to 56,817.52, 78,408.68 and 31,324.79

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Solution

The fourth proportional to 56,817.52, 78,408.68 and 31,324.79 is: 43,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,817.52 : 78,408.68 = 31,324.79 : x
  2. Step 2: Convert to fraction form
    56,817.52/78,408.68 = 31,324.79/x
  3. Step 3: Cross multiply
    56,817.52x = 78,408.68 × 31,324.79
  4. Step 4: Simplify right side
    56,817.52x = 2,456,135,408.09
  5. Step 5: Solve for x
    x = 2,456,135,408.09/56,817.52
  6. Step 6: Final answer
    x = 43,228.49

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1.5x scale

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.