Home / 70,639.50-106,012.70-35,608.62

Finding the Fourth Proportional to 70,639.50, 106,012.70 and 35,608.62

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Solution

The fourth proportional to 70,639.50, 106,012.70 and 35,608.62 is: 53,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.50 : 106,012.70 = 35,608.62 : x
  2. Step 2: Convert to fraction form
    70,639.50/106,012.70 = 35,608.62/x
  3. Step 3: Cross multiply
    70,639.50x = 106,012.70 × 35,608.62
  4. Step 4: Simplify right side
    70,639.50x = 3,774,965,949.47
  5. Step 5: Solve for x
    x = 3,774,965,949.47/70,639.50
  6. Step 6: Final answer
    x = 53,439.87

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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.