Home / 45,173.34-67,785.12-20,212.38

Finding the Fourth Proportional to 45,173.34, 67,785.12 and 20,212.38

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Solution

The fourth proportional to 45,173.34, 67,785.12 and 20,212.38 is: 30,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,173.34 : 67,785.12 = 20,212.38 : x
  2. Step 2: Convert to fraction form
    45,173.34/67,785.12 = 20,212.38/x
  3. Step 3: Cross multiply
    45,173.34x = 67,785.12 × 20,212.38
  4. Step 4: Simplify right side
    45,173.34x = 1,370,098,603.79
  5. Step 5: Solve for x
    x = 1,370,098,603.79/45,173.34
  6. Step 6: Final answer
    x = 30,329.81

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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.