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Finding the Fourth Proportional to 91,558.44, 126,363.44 and 66,147.01

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Solution

The fourth proportional to 91,558.44, 126,363.44 and 66,147.01 is: 91,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,558.44 : 126,363.44 = 66,147.01 : x
  2. Step 2: Convert to fraction form
    91,558.44/126,363.44 = 66,147.01/x
  3. Step 3: Cross multiply
    91,558.44x = 126,363.44 × 66,147.01
  4. Step 4: Simplify right side
    91,558.44x = 8,358,563,578.77
  5. Step 5: Solve for x
    x = 8,358,563,578.77/91,558.44
  6. Step 6: Final answer
    x = 91,292.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.