Home / 54,431.16-75,119.34-30,559.40

Finding the Fourth Proportional to 54,431.16, 75,119.34 and 30,559.40

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Solution

The fourth proportional to 54,431.16, 75,119.34 and 30,559.40 is: 42,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431.16 : 75,119.34 = 30,559.40 : x
  2. Step 2: Convert to fraction form
    54,431.16/75,119.34 = 30,559.40/x
  3. Step 3: Cross multiply
    54,431.16x = 75,119.34 × 30,559.40
  4. Step 4: Simplify right side
    54,431.16x = 2,295,601,958.80
  5. Step 5: Solve for x
    x = 2,295,601,958.80/54,431.16
  6. Step 6: Final answer
    x = 42,174.41

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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.