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Finding the Fourth Proportional to 93,090.20, 128,467.20 and 50,651.46

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Solution

The fourth proportional to 93,090.20, 128,467.20 and 50,651.46 is: 69,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,090.20 : 128,467.20 = 50,651.46 : x
  2. Step 2: Convert to fraction form
    93,090.20/128,467.20 = 50,651.46/x
  3. Step 3: Cross multiply
    93,090.20x = 128,467.20 × 50,651.46
  4. Step 4: Simplify right side
    93,090.20x = 6,507,051,242.11
  5. Step 5: Solve for x
    x = 6,507,051,242.11/93,090.20
  6. Step 6: Final answer
    x = 69,900.50

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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.