Home / 70,137.10-105,236.62-36,849.20

Finding the Fourth Proportional to 70,137.10, 105,236.62 and 36,849.20

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Solution

The fourth proportional to 70,137.10, 105,236.62 and 36,849.20 is: 55,290.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,137.10 : 105,236.62 = 36,849.20 : x
  2. Step 2: Convert to fraction form
    70,137.10/105,236.62 = 36,849.20/x
  3. Step 3: Cross multiply
    70,137.10x = 105,236.62 × 36,849.20
  4. Step 4: Simplify right side
    70,137.10x = 3,877,885,257.70
  5. Step 5: Solve for x
    x = 3,877,885,257.70/70,137.10
  6. Step 6: Final answer
    x = 55,290.07

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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.