Home / 93,221.14-128,645.39-50,778.76

Finding the Fourth Proportional to 93,221.14, 128,645.39 and 50,778.76

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Solution

The fourth proportional to 93,221.14, 128,645.39 and 50,778.76 is: 70,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,221.14 : 128,645.39 = 50,778.76 : x
  2. Step 2: Convert to fraction form
    93,221.14/128,645.39 = 50,778.76/x
  3. Step 3: Cross multiply
    93,221.14x = 128,645.39 × 50,778.76
  4. Step 4: Simplify right side
    93,221.14x = 6,532,453,383.92
  5. Step 5: Solve for x
    x = 6,532,453,383.92/93,221.14
  6. Step 6: Final answer
    x = 70,074.81

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Double scale
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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.