Home / 54,172.55-74,758.31-30,297.70

Finding the Fourth Proportional to 54,172.55, 74,758.31 and 30,297.70

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Solution

The fourth proportional to 54,172.55, 74,758.31 and 30,297.70 is: 41,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,172.55 : 74,758.31 = 30,297.70 : x
  2. Step 2: Convert to fraction form
    54,172.55/74,758.31 = 30,297.70/x
  3. Step 3: Cross multiply
    54,172.55x = 74,758.31 × 30,297.70
  4. Step 4: Simplify right side
    54,172.55x = 2,265,004,737.74
  5. Step 5: Solve for x
    x = 2,265,004,737.74/54,172.55
  6. Step 6: Final answer
    x = 41,810.93

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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.