Home / 54,431.62-75,114.20-30,231.86

Finding the Fourth Proportional to 54,431.62, 75,114.20 and 30,231.86

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Solution

The fourth proportional to 54,431.62, 75,114.20 and 30,231.86 is: 41,719.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,431.62 : 75,114.20 = 30,231.86 : x
  2. Step 2: Convert to fraction form
    54,431.62/75,114.20 = 30,231.86/x
  3. Step 3: Cross multiply
    54,431.62x = 75,114.20 × 30,231.86
  4. Step 4: Simplify right side
    54,431.62x = 2,270,841,978.41
  5. Step 5: Solve for x
    x = 2,270,841,978.41/54,431.62
  6. Step 6: Final answer
    x = 41,719.17

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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.