Home / 57,621.94-79,496.85-38,729.14

Finding the Fourth Proportional to 57,621.94, 79,496.85 and 38,729.14

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Solution

The fourth proportional to 57,621.94, 79,496.85 and 38,729.14 is: 53,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,621.94 : 79,496.85 = 38,729.14 : x
  2. Step 2: Convert to fraction form
    57,621.94/79,496.85 = 38,729.14/x
  3. Step 3: Cross multiply
    57,621.94x = 79,496.85 × 38,729.14
  4. Step 4: Simplify right side
    57,621.94x = 3,078,844,633.21
  5. Step 5: Solve for x
    x = 3,078,844,633.21/57,621.94
  6. Step 6: Final answer
    x = 53,431.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.