Home / 56,817.30-78,408.38-31,324.55

Finding the Fourth Proportional to 56,817.30, 78,408.38 and 31,324.55

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Solution

The fourth proportional to 56,817.30, 78,408.38 and 31,324.55 is: 43,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,817.30 : 78,408.38 = 31,324.55 : x
  2. Step 2: Convert to fraction form
    56,817.30/78,408.38 = 31,324.55/x
  3. Step 3: Cross multiply
    56,817.30x = 78,408.38 × 31,324.55
  4. Step 4: Simplify right side
    56,817.30x = 2,456,107,219.73
  5. Step 5: Solve for x
    x = 2,456,107,219.73/56,817.30
  6. Step 6: Final answer
    x = 43,228.16

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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.