Home / 93,273.12-128,716.80-50,831.64

Finding the Fourth Proportional to 93,273.12, 128,716.80 and 50,831.64

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Solution

The fourth proportional to 93,273.12, 128,716.80 and 50,831.64 is: 70,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,273.12 : 128,716.80 = 50,831.64 : x
  2. Step 2: Convert to fraction form
    93,273.12/128,716.80 = 50,831.64/x
  3. Step 3: Cross multiply
    93,273.12x = 128,716.80 × 50,831.64
  4. Step 4: Simplify right side
    93,273.12x = 6,542,886,039.55
  5. Step 5: Solve for x
    x = 6,542,886,039.55/93,273.12
  6. Step 6: Final answer
    x = 70,147.61

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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.