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Finding the Fourth Proportional to 53,906.20, 80,705.70 and 52,370.20

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Solution

The fourth proportional to 53,906.20, 80,705.70 and 52,370.20 is: 78,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,906.20 : 80,705.70 = 52,370.20 : x
  2. Step 2: Convert to fraction form
    53,906.20/80,705.70 = 52,370.20/x
  3. Step 3: Cross multiply
    53,906.20x = 80,705.70 × 52,370.20
  4. Step 4: Simplify right side
    53,906.20x = 4,226,573,650.14
  5. Step 5: Solve for x
    x = 4,226,573,650.14/53,906.20
  6. Step 6: Final answer
    x = 78,406.08

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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.