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Finding the Fourth Proportional to 40,690.20, 60,905.70 and 29,026.20

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Solution

The fourth proportional to 40,690.20, 60,905.70 and 29,026.20 is: 43,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.20 : 60,905.70 = 29,026.20 : x
  2. Step 2: Convert to fraction form
    40,690.20/60,905.70 = 29,026.20/x
  3. Step 3: Cross multiply
    40,690.20x = 60,905.70 × 29,026.20
  4. Step 4: Simplify right side
    40,690.20x = 1,767,861,029.34
  5. Step 5: Solve for x
    x = 1,767,861,029.34/40,690.20
  6. Step 6: Final answer
    x = 43,446.85

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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.