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Finding the Fourth Proportional to 56,234.60, 84,327.60 and 28,143.80

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Solution

The fourth proportional to 56,234.60, 84,327.60 and 28,143.80 is: 42,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,234.60 : 84,327.60 = 28,143.80 : x
  2. Step 2: Convert to fraction form
    56,234.60/84,327.60 = 28,143.80/x
  3. Step 3: Cross multiply
    56,234.60x = 84,327.60 × 28,143.80
  4. Step 4: Simplify right side
    56,234.60x = 2,373,299,108.88
  5. Step 5: Solve for x
    x = 2,373,299,108.88/56,234.60
  6. Step 6: Final answer
    x = 42,203.54

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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.