Home / 51,724.56-71,388-30,506.16

Finding the Fourth Proportional to 51,724.56, 71,388 and 30,506.16

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Solution

The fourth proportional to 51,724.56, 71,388 and 30,506.16 is: 42,103.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,724.56 : 71,388 = 30,506.16 : x
  2. Step 2: Convert to fraction form
    51,724.56/71,388 = 30,506.16/x
  3. Step 3: Cross multiply
    51,724.56x = 71,388 × 30,506.16
  4. Step 4: Simplify right side
    51,724.56x = 2,177,773,750.08
  5. Step 5: Solve for x
    x = 2,177,773,750.08/51,724.56
  6. Step 6: Final answer
    x = 42,103.28

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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.