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Finding the Fourth Proportional to 84,953.79, 127,351.03 and 28,754.56

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Solution

The fourth proportional to 84,953.79, 127,351.03 and 28,754.56 is: 43,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,953.79 : 127,351.03 = 28,754.56 : x
  2. Step 2: Convert to fraction form
    84,953.79/127,351.03 = 28,754.56/x
  3. Step 3: Cross multiply
    84,953.79x = 127,351.03 × 28,754.56
  4. Step 4: Simplify right side
    84,953.79x = 3,661,922,833.20
  5. Step 5: Solve for x
    x = 3,661,922,833.20/84,953.79
  6. Step 6: Final answer
    x = 43,104.88

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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.