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Finding the Fourth Proportional to 93,099.68, 128,480.30 and 50,660.96

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Solution

The fourth proportional to 93,099.68, 128,480.30 and 50,660.96 is: 69,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,099.68 : 128,480.30 = 50,660.96 : x
  2. Step 2: Convert to fraction form
    93,099.68/128,480.30 = 50,660.96/x
  3. Step 3: Cross multiply
    93,099.68x = 128,480.30 × 50,660.96
  4. Step 4: Simplify right side
    93,099.68x = 6,508,935,339.09
  5. Step 5: Solve for x
    x = 6,508,935,339.09/93,099.68
  6. Step 6: Final answer
    x = 69,913.62

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