Home / 84,837.69-127,235.49-28,676.55

Finding the Fourth Proportional to 84,837.69, 127,235.49 and 28,676.55

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Solution

The fourth proportional to 84,837.69, 127,235.49 and 28,676.55 is: 43,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,837.69 : 127,235.49 = 28,676.55 : x
  2. Step 2: Convert to fraction form
    84,837.69/127,235.49 = 28,676.55/x
  3. Step 3: Cross multiply
    84,837.69x = 127,235.49 × 28,676.55
  4. Step 4: Simplify right side
    84,837.69x = 3,648,674,890.76
  5. Step 5: Solve for x
    x = 3,648,674,890.76/84,837.69
  6. Step 6: Final answer
    x = 43,007.71

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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.