Home / 54,157.49-74,744.30-30,285.47

Finding the Fourth Proportional to 54,157.49, 74,744.30 and 30,285.47

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Solution

The fourth proportional to 54,157.49, 74,744.30 and 30,285.47 is: 41,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,157.49 : 74,744.30 = 30,285.47 : x
  2. Step 2: Convert to fraction form
    54,157.49/74,744.30 = 30,285.47/x
  3. Step 3: Cross multiply
    54,157.49x = 74,744.30 × 30,285.47
  4. Step 4: Simplify right side
    54,157.49x = 2,263,666,290.75
  5. Step 5: Solve for x
    x = 2,263,666,290.75/54,157.49
  6. Step 6: Final answer
    x = 41,797.85

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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.