Home / 54,179.40-74,771.52-30,313.76

Finding the Fourth Proportional to 54,179.40, 74,771.52 and 30,313.76

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Solution

The fourth proportional to 54,179.40, 74,771.52 and 30,313.76 is: 41,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,179.40 : 74,771.52 = 30,313.76 : x
  2. Step 2: Convert to fraction form
    54,179.40/74,771.52 = 30,313.76/x
  3. Step 3: Cross multiply
    54,179.40x = 74,771.52 × 30,313.76
  4. Step 4: Simplify right side
    54,179.40x = 2,266,605,912.12
  5. Step 5: Solve for x
    x = 2,266,605,912.12/54,179.40
  6. Step 6: Final answer
    x = 41,835.20

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1.5x scale

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.