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Finding the Fourth Proportional to 91,318.60, 136,913.10 and 41,422.60

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Solution

The fourth proportional to 91,318.60, 136,913.10 and 41,422.60 is: 62,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,318.60 : 136,913.10 = 41,422.60 : x
  2. Step 2: Convert to fraction form
    91,318.60/136,913.10 = 41,422.60/x
  3. Step 3: Cross multiply
    91,318.60x = 136,913.10 × 41,422.60
  4. Step 4: Simplify right side
    91,318.60x = 5,671,296,576.06
  5. Step 5: Solve for x
    x = 5,671,296,576.06/91,318.60
  6. Step 6: Final answer
    x = 62,104.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.