Home / 54,643.20-81,964.80-48,738.30

Finding the Fourth Proportional to 54,643.20, 81,964.80 and 48,738.30

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Solution

The fourth proportional to 54,643.20, 81,964.80 and 48,738.30 is: 73,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,643.20 : 81,964.80 = 48,738.30 : x
  2. Step 2: Convert to fraction form
    54,643.20/81,964.80 = 48,738.30/x
  3. Step 3: Cross multiply
    54,643.20x = 81,964.80 × 48,738.30
  4. Step 4: Simplify right side
    54,643.20x = 3,994,825,011.84
  5. Step 5: Solve for x
    x = 3,994,825,011.84/54,643.20
  6. Step 6: Final answer
    x = 73,107.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.