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Finding the Fourth Proportional to 93,180.57, 128,589.69 and 50,739.12

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Solution

The fourth proportional to 93,180.57, 128,589.69 and 50,739.12 is: 70,020.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,180.57 : 128,589.69 = 50,739.12 : x
  2. Step 2: Convert to fraction form
    93,180.57/128,589.69 = 50,739.12/x
  3. Step 3: Cross multiply
    93,180.57x = 128,589.69 × 50,739.12
  4. Step 4: Simplify right side
    93,180.57x = 6,524,527,711.67
  5. Step 5: Solve for x
    x = 6,524,527,711.67/93,180.57
  6. Step 6: Final answer
    x = 70,020.26

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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.