Home / 45,503.12-68,261.97-13,485.44

Finding the Fourth Proportional to 45,503.12, 68,261.97 and 13,485.44

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Solution

The fourth proportional to 45,503.12, 68,261.97 and 13,485.44 is: 20,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,503.12 : 68,261.97 = 13,485.44 : x
  2. Step 2: Convert to fraction form
    45,503.12/68,261.97 = 13,485.44/x
  3. Step 3: Cross multiply
    45,503.12x = 68,261.97 × 13,485.44
  4. Step 4: Simplify right side
    45,503.12x = 920,542,359.41
  5. Step 5: Solve for x
    x = 920,542,359.41/45,503.12
  6. Step 6: Final answer
    x = 20,230.32

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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.