Home / 70,150.55-105,110.40-40,516.70

Finding the Fourth Proportional to 70,150.55, 105,110.40 and 40,516.70

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Solution

The fourth proportional to 70,150.55, 105,110.40 and 40,516.70 is: 60,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,150.55 : 105,110.40 = 40,516.70 : x
  2. Step 2: Convert to fraction form
    70,150.55/105,110.40 = 40,516.70/x
  3. Step 3: Cross multiply
    70,150.55x = 105,110.40 × 40,516.70
  4. Step 4: Simplify right side
    70,150.55x = 4,258,726,543.68
  5. Step 5: Solve for x
    x = 4,258,726,543.68/70,150.55
  6. Step 6: Final answer
    x = 60,708.38

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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.