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Finding the Fourth Proportional to 66,758.54, 92,097.47 and 39,887.60

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Solution

The fourth proportional to 66,758.54, 92,097.47 and 39,887.60 is: 55,027.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,758.54 : 92,097.47 = 39,887.60 : x
  2. Step 2: Convert to fraction form
    66,758.54/92,097.47 = 39,887.60/x
  3. Step 3: Cross multiply
    66,758.54x = 92,097.47 × 39,887.60
  4. Step 4: Simplify right side
    66,758.54x = 3,673,546,683.60
  5. Step 5: Solve for x
    x = 3,673,546,683.60/66,758.54
  6. Step 6: Final answer
    x = 55,027.37

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1.5x scale

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.