Home / 45,466.25-68,209.55-13,879.12

Finding the Fourth Proportional to 45,466.25, 68,209.55 and 13,879.12

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Solution

The fourth proportional to 45,466.25, 68,209.55 and 13,879.12 is: 20,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,466.25 : 68,209.55 = 13,879.12 : x
  2. Step 2: Convert to fraction form
    45,466.25/68,209.55 = 13,879.12/x
  3. Step 3: Cross multiply
    45,466.25x = 68,209.55 × 13,879.12
  4. Step 4: Simplify right side
    45,466.25x = 946,688,341.72
  5. Step 5: Solve for x
    x = 946,688,341.72/45,466.25
  6. Step 6: Final answer
    x = 20,821.78

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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.