Home / 45,427.99-68,145.44-13,840.75

Finding the Fourth Proportional to 45,427.99, 68,145.44 and 13,840.75

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Solution

The fourth proportional to 45,427.99, 68,145.44 and 13,840.75 is: 20,762.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.99 : 68,145.44 = 13,840.75 : x
  2. Step 2: Convert to fraction form
    45,427.99/68,145.44 = 13,840.75/x
  3. Step 3: Cross multiply
    45,427.99x = 68,145.44 × 13,840.75
  4. Step 4: Simplify right side
    45,427.99x = 943,183,843.95
  5. Step 5: Solve for x
    x = 943,183,843.95/45,427.99
  6. Step 6: Final answer
    x = 20,762.17

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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.