Home / 93,100.17-128,481.45-50,660.31

Finding the Fourth Proportional to 93,100.17, 128,481.45 and 50,660.31

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Solution

The fourth proportional to 93,100.17, 128,481.45 and 50,660.31 is: 69,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,100.17 : 128,481.45 = 50,660.31 : x
  2. Step 2: Convert to fraction form
    93,100.17/128,481.45 = 50,660.31/x
  3. Step 3: Cross multiply
    93,100.17x = 128,481.45 × 50,660.31
  4. Step 4: Simplify right side
    93,100.17x = 6,508,910,086.25
  5. Step 5: Solve for x
    x = 6,508,910,086.25/93,100.17
  6. Step 6: Final answer
    x = 69,912.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.