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Finding the Fourth Proportional to 84,897.91, 127,339.52 and 28,736.81

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Solution

The fourth proportional to 84,897.91, 127,339.52 and 28,736.81 is: 43,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.91 : 127,339.52 = 28,736.81 : x
  2. Step 2: Convert to fraction form
    84,897.91/127,339.52 = 28,736.81/x
  3. Step 3: Cross multiply
    84,897.91x = 127,339.52 × 28,736.81
  4. Step 4: Simplify right side
    84,897.91x = 3,659,331,591.73
  5. Step 5: Solve for x
    x = 3,659,331,591.73/84,897.91
  6. Step 6: Final answer
    x = 43,102.73

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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.