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Finding the Fourth Proportional to 93,369.92, 128,853.62 and 50,930.80

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Solution

The fourth proportional to 93,369.92, 128,853.62 and 50,930.80 is: 70,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,369.92 : 128,853.62 = 50,930.80 : x
  2. Step 2: Convert to fraction form
    93,369.92/128,853.62 = 50,930.80/x
  3. Step 3: Cross multiply
    93,369.92x = 128,853.62 × 50,930.80
  4. Step 4: Simplify right side
    93,369.92x = 6,562,617,949.50
  5. Step 5: Solve for x
    x = 6,562,617,949.50/93,369.92
  6. Step 6: Final answer
    x = 70,286.21

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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.