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Finding the Fourth Proportional to 92,769.37, 128,022.05 and 50,328.20

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Solution

The fourth proportional to 92,769.37, 128,022.05 and 50,328.20 is: 69,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,769.37 : 128,022.05 = 50,328.20 : x
  2. Step 2: Convert to fraction form
    92,769.37/128,022.05 = 50,328.20/x
  3. Step 3: Cross multiply
    92,769.37x = 128,022.05 × 50,328.20
  4. Step 4: Simplify right side
    92,769.37x = 6,443,119,782.69
  5. Step 5: Solve for x
    x = 6,443,119,782.69/92,769.37
  6. Step 6: Final answer
    x = 69,453.10

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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.