Home / 70,516.42-105,790.21-26,143.18

Finding the Fourth Proportional to 70,516.42, 105,790.21 and 26,143.18

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Solution

The fourth proportional to 70,516.42, 105,790.21 and 26,143.18 is: 39,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,516.42 : 105,790.21 = 26,143.18 : x
  2. Step 2: Convert to fraction form
    70,516.42/105,790.21 = 26,143.18/x
  3. Step 3: Cross multiply
    70,516.42x = 105,790.21 × 26,143.18
  4. Step 4: Simplify right side
    70,516.42x = 2,765,692,469.97
  5. Step 5: Solve for x
    x = 2,765,692,469.97/70,516.42
  6. Step 6: Final answer
    x = 39,220.54

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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.