Home / 67,518.96-101,278.68-20,771.60

Finding the Fourth Proportional to 67,518.96, 101,278.68 and 20,771.60

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Solution

The fourth proportional to 67,518.96, 101,278.68 and 20,771.60 is: 31,157.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,518.96 : 101,278.68 = 20,771.60 : x
  2. Step 2: Convert to fraction form
    67,518.96/101,278.68 = 20,771.60/x
  3. Step 3: Cross multiply
    67,518.96x = 101,278.68 × 20,771.60
  4. Step 4: Simplify right side
    67,518.96x = 2,103,720,229.49
  5. Step 5: Solve for x
    x = 2,103,720,229.49/67,518.96
  6. Step 6: Final answer
    x = 31,157.47

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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.