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Finding the Fourth Proportional to 100,380.24, 138,527.52 and 57,941.04

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Solution

The fourth proportional to 100,380.24, 138,527.52 and 57,941.04 is: 79,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,380.24 : 138,527.52 = 57,941.04 : x
  2. Step 2: Convert to fraction form
    100,380.24/138,527.52 = 57,941.04/x
  3. Step 3: Cross multiply
    100,380.24x = 138,527.52 × 57,941.04
  4. Step 4: Simplify right side
    100,380.24x = 8,026,428,577.42
  5. Step 5: Solve for x
    x = 8,026,428,577.42/100,380.24
  6. Step 6: Final answer
    x = 79,960.24

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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.