Home / 73,078.28-100,850.92-42,859.40

Finding the Fourth Proportional to 73,078.28, 100,850.92 and 42,859.40

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Solution

The fourth proportional to 73,078.28, 100,850.92 and 42,859.40 is: 59,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,078.28 : 100,850.92 = 42,859.40 : x
  2. Step 2: Convert to fraction form
    73,078.28/100,850.92 = 42,859.40/x
  3. Step 3: Cross multiply
    73,078.28x = 100,850.92 × 42,859.40
  4. Step 4: Simplify right side
    73,078.28x = 4,322,409,920.65
  5. Step 5: Solve for x
    x = 4,322,409,920.65/73,078.28
  6. Step 6: Final answer
    x = 59,147.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.