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Finding the Fourth Proportional to 91,305.60, 136,893.60 and 41,409.60

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Solution

The fourth proportional to 91,305.60, 136,893.60 and 41,409.60 is: 62,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,305.60 : 136,893.60 = 41,409.60 : x
  2. Step 2: Convert to fraction form
    91,305.60/136,893.60 = 41,409.60/x
  3. Step 3: Cross multiply
    91,305.60x = 136,893.60 × 41,409.60
  4. Step 4: Simplify right side
    91,305.60x = 5,668,709,218.56
  5. Step 5: Solve for x
    x = 5,668,709,218.56/91,305.60
  6. Step 6: Final answer
    x = 62,085.01

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Why These Related Problems?

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