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Finding the Fourth Proportional to 84,897.87, 127,339.44 and 28,736.73

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Solution

The fourth proportional to 84,897.87, 127,339.44 and 28,736.73 is: 43,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.87 : 127,339.44 = 28,736.73 : x
  2. Step 2: Convert to fraction form
    84,897.87/127,339.44 = 28,736.73/x
  3. Step 3: Cross multiply
    84,897.87x = 127,339.44 × 28,736.73
  4. Step 4: Simplify right side
    84,897.87x = 3,659,319,105.63
  5. Step 5: Solve for x
    x = 3,659,319,105.63/84,897.87
  6. Step 6: Final answer
    x = 43,102.60

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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.