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Finding the Fourth Proportional to 84,503.36, 126,745.30 and 22,178.72

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Solution

The fourth proportional to 84,503.36, 126,745.30 and 22,178.72 is: 33,265.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,503.36 : 126,745.30 = 22,178.72 : x
  2. Step 2: Convert to fraction form
    84,503.36/126,745.30 = 22,178.72/x
  3. Step 3: Cross multiply
    84,503.36x = 126,745.30 × 22,178.72
  4. Step 4: Simplify right side
    84,503.36x = 2,811,048,520.02
  5. Step 5: Solve for x
    x = 2,811,048,520.02/84,503.36
  6. Step 6: Final answer
    x = 33,265.52

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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.