Home / 54,138.63-81,011.10-44,690.79

Finding the Fourth Proportional to 54,138.63, 81,011.10 and 44,690.79

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Solution

The fourth proportional to 54,138.63, 81,011.10 and 44,690.79 is: 66,873.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.63 : 81,011.10 = 44,690.79 : x
  2. Step 2: Convert to fraction form
    54,138.63/81,011.10 = 44,690.79/x
  3. Step 3: Cross multiply
    54,138.63x = 81,011.10 × 44,690.79
  4. Step 4: Simplify right side
    54,138.63x = 3,620,450,057.77
  5. Step 5: Solve for x
    x = 3,620,450,057.77/54,138.63
  6. Step 6: Final answer
    x = 66,873.69

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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.