Home / 54,011.52-81,036.72-18,956.64

Finding the Fourth Proportional to 54,011.52, 81,036.72 and 18,956.64

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Solution

The fourth proportional to 54,011.52, 81,036.72 and 18,956.64 is: 28,441.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,011.52 : 81,036.72 = 18,956.64 : x
  2. Step 2: Convert to fraction form
    54,011.52/81,036.72 = 18,956.64/x
  3. Step 3: Cross multiply
    54,011.52x = 81,036.72 × 18,956.64
  4. Step 4: Simplify right side
    54,011.52x = 1,536,183,927.82
  5. Step 5: Solve for x
    x = 1,536,183,927.82/54,011.52
  6. Step 6: Final answer
    x = 28,441.78

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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.