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Finding the Fourth Proportional to 70,908.96, 106,387.20 and 26,540.40

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Solution

The fourth proportional to 70,908.96, 106,387.20 and 26,540.40 is: 39,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,908.96 : 106,387.20 = 26,540.40 : x
  2. Step 2: Convert to fraction form
    70,908.96/106,387.20 = 26,540.40/x
  3. Step 3: Cross multiply
    70,908.96x = 106,387.20 × 26,540.40
  4. Step 4: Simplify right side
    70,908.96x = 2,823,558,842.88
  5. Step 5: Solve for x
    x = 2,823,558,842.88/70,908.96
  6. Step 6: Final answer
    x = 39,819.49

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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.