Home / 54,731.52-75,529.60-30,858.40

Finding the Fourth Proportional to 54,731.52, 75,529.60 and 30,858.40

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Solution

The fourth proportional to 54,731.52, 75,529.60 and 30,858.40 is: 42,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,731.52 : 75,529.60 = 30,858.40 : x
  2. Step 2: Convert to fraction form
    54,731.52/75,529.60 = 30,858.40/x
  3. Step 3: Cross multiply
    54,731.52x = 75,529.60 × 30,858.40
  4. Step 4: Simplify right side
    54,731.52x = 2,330,722,608.64
  5. Step 5: Solve for x
    x = 2,330,722,608.64/54,731.52
  6. Step 6: Final answer
    x = 42,584.65

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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.