Home / 55,845.55-83,778.70-18,408.25

Finding the Fourth Proportional to 55,845.55, 83,778.70 and 18,408.25

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Solution

The fourth proportional to 55,845.55, 83,778.70 and 18,408.25 is: 27,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,845.55 : 83,778.70 = 18,408.25 : x
  2. Step 2: Convert to fraction form
    55,845.55/83,778.70 = 18,408.25/x
  3. Step 3: Cross multiply
    55,845.55x = 83,778.70 × 18,408.25
  4. Step 4: Simplify right side
    55,845.55x = 1,542,219,254.28
  5. Step 5: Solve for x
    x = 1,542,219,254.28/55,845.55
  6. Step 6: Final answer
    x = 27,615.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.