Home / 93,078.11-128,447.10-50,636.61

Finding the Fourth Proportional to 93,078.11, 128,447.10 and 50,636.61

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Solution

The fourth proportional to 93,078.11, 128,447.10 and 50,636.61 is: 69,878.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,078.11 : 128,447.10 = 50,636.61 : x
  2. Step 2: Convert to fraction form
    93,078.11/128,447.10 = 50,636.61/x
  3. Step 3: Cross multiply
    93,078.11x = 128,447.10 × 50,636.61
  4. Step 4: Simplify right side
    93,078.11x = 6,504,125,708.33
  5. Step 5: Solve for x
    x = 6,504,125,708.33/93,078.11
  6. Step 6: Final answer
    x = 69,878.14

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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.