Home / 54,930.07-82,373.79-18,899.68

Finding the Fourth Proportional to 54,930.07, 82,373.79 and 18,899.68

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Solution

The fourth proportional to 54,930.07, 82,373.79 and 18,899.68 is: 28,342.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,930.07 : 82,373.79 = 18,899.68 : x
  2. Step 2: Convert to fraction form
    54,930.07/82,373.79 = 18,899.68/x
  3. Step 3: Cross multiply
    54,930.07x = 82,373.79 × 18,899.68
  4. Step 4: Simplify right side
    54,930.07x = 1,556,838,271.39
  5. Step 5: Solve for x
    x = 1,556,838,271.39/54,930.07
  6. Step 6: Final answer
    x = 28,342.19

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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.