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Finding the Fourth Proportional to 45,652.60, 68,477.94 and 21,028.60

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Solution

The fourth proportional to 45,652.60, 68,477.94 and 21,028.60 is: 31,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,652.60 : 68,477.94 = 21,028.60 : x
  2. Step 2: Convert to fraction form
    45,652.60/68,477.94 = 21,028.60/x
  3. Step 3: Cross multiply
    45,652.60x = 68,477.94 × 21,028.60
  4. Step 4: Simplify right side
    45,652.60x = 1,439,995,209.08
  5. Step 5: Solve for x
    x = 1,439,995,209.08/45,652.60
  6. Step 6: Final answer
    x = 31,542.46

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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.