Home / 67,036.14-100,570.82-20,289.15

Finding the Fourth Proportional to 67,036.14, 100,570.82 and 20,289.15

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Solution

The fourth proportional to 67,036.14, 100,570.82 and 20,289.15 is: 30,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,036.14 : 100,570.82 = 20,289.15 : x
  2. Step 2: Convert to fraction form
    67,036.14/100,570.82 = 20,289.15/x
  3. Step 3: Cross multiply
    67,036.14x = 100,570.82 × 20,289.15
  4. Step 4: Simplify right side
    67,036.14x = 2,040,496,351.16
  5. Step 5: Solve for x
    x = 2,040,496,351.16/67,036.14
  6. Step 6: Final answer
    x = 30,438.75

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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.