Home / 54,564.12-75,297.74-30,690.78

Finding the Fourth Proportional to 54,564.12, 75,297.74 and 30,690.78

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Solution

The fourth proportional to 54,564.12, 75,297.74 and 30,690.78 is: 42,352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,564.12 : 75,297.74 = 30,690.78 : x
  2. Step 2: Convert to fraction form
    54,564.12/75,297.74 = 30,690.78/x
  3. Step 3: Cross multiply
    54,564.12x = 75,297.74 × 30,690.78
  4. Step 4: Simplify right side
    54,564.12x = 2,310,946,372.84
  5. Step 5: Solve for x
    x = 2,310,946,372.84/54,564.12
  6. Step 6: Final answer
    x = 42,352.86

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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.