Home / 84,825.12-127,252.36-28,665.68

Finding the Fourth Proportional to 84,825.12, 127,252.36 and 28,665.68

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Solution

The fourth proportional to 84,825.12, 127,252.36 and 28,665.68 is: 43,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,825.12 : 127,252.36 = 28,665.68 : x
  2. Step 2: Convert to fraction form
    84,825.12/127,252.36 = 28,665.68/x
  3. Step 3: Cross multiply
    84,825.12x = 127,252.36 × 28,665.68
  4. Step 4: Simplify right side
    84,825.12x = 3,647,775,431.00
  5. Step 5: Solve for x
    x = 3,647,775,431.00/84,825.12
  6. Step 6: Final answer
    x = 43,003.48

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1.5x scale

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.