Home / 54,635.16-75,396.78-30,765

Finding the Fourth Proportional to 54,635.16, 75,396.78 and 30,765

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Solution

The fourth proportional to 54,635.16, 75,396.78 and 30,765 is: 42,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,635.16 : 75,396.78 = 30,765 : x
  2. Step 2: Convert to fraction form
    54,635.16/75,396.78 = 30,765/x
  3. Step 3: Cross multiply
    54,635.16x = 75,396.78 × 30,765
  4. Step 4: Simplify right side
    54,635.16x = 2,319,581,936.70
  5. Step 5: Solve for x
    x = 2,319,581,936.70/54,635.16
  6. Step 6: Final answer
    x = 42,455.85

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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.