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Finding the Fourth Proportional to 66,065.01, 91,147.64 and 37,380.68

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Solution

The fourth proportional to 66,065.01, 91,147.64 and 37,380.68 is: 51,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.01 : 91,147.64 = 37,380.68 : x
  2. Step 2: Convert to fraction form
    66,065.01/91,147.64 = 37,380.68/x
  3. Step 3: Cross multiply
    66,065.01x = 91,147.64 × 37,380.68
  4. Step 4: Simplify right side
    66,065.01x = 3,407,160,763.60
  5. Step 5: Solve for x
    x = 3,407,160,763.60/66,065.01
  6. Step 6: Final answer
    x = 51,572.85

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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.