Home / 54,390.26-75,059.87-30,518.70

Finding the Fourth Proportional to 54,390.26, 75,059.87 and 30,518.70

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Solution

The fourth proportional to 54,390.26, 75,059.87 and 30,518.70 is: 42,116.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.26 : 75,059.87 = 30,518.70 : x
  2. Step 2: Convert to fraction form
    54,390.26/75,059.87 = 30,518.70/x
  3. Step 3: Cross multiply
    54,390.26x = 75,059.87 × 30,518.70
  4. Step 4: Simplify right side
    54,390.26x = 2,290,729,431.61
  5. Step 5: Solve for x
    x = 2,290,729,431.61/54,390.26
  6. Step 6: Final answer
    x = 42,116.54

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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.