Home / 43,777.45-65,671.85-20,079.28

Finding the Fourth Proportional to 43,777.45, 65,671.85 and 20,079.28

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Solution

The fourth proportional to 43,777.45, 65,671.85 and 20,079.28 is: 30,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,777.45 : 65,671.85 = 20,079.28 : x
  2. Step 2: Convert to fraction form
    43,777.45/65,671.85 = 20,079.28/x
  3. Step 3: Cross multiply
    43,777.45x = 65,671.85 × 20,079.28
  4. Step 4: Simplify right side
    43,777.45x = 1,318,643,464.27
  5. Step 5: Solve for x
    x = 1,318,643,464.27/43,777.45
  6. Step 6: Final answer
    x = 30,121.52

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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.