Home / 45,515.37-68,265.74-19,216.70

Finding the Fourth Proportional to 45,515.37, 68,265.74 and 19,216.70

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Solution

The fourth proportional to 45,515.37, 68,265.74 and 19,216.70 is: 28,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,515.37 : 68,265.74 = 19,216.70 : x
  2. Step 2: Convert to fraction form
    45,515.37/68,265.74 = 19,216.70/x
  3. Step 3: Cross multiply
    45,515.37x = 68,265.74 × 19,216.70
  4. Step 4: Simplify right side
    45,515.37x = 1,311,842,245.86
  5. Step 5: Solve for x
    x = 1,311,842,245.86/45,515.37
  6. Step 6: Final answer
    x = 28,821.96

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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.