Home / 66,404.38-91,627.32-39,546.20

Finding the Fourth Proportional to 66,404.38, 91,627.32 and 39,546.20

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Solution

The fourth proportional to 66,404.38, 91,627.32 and 39,546.20 is: 54,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,404.38 : 91,627.32 = 39,546.20 : x
  2. Step 2: Convert to fraction form
    66,404.38/91,627.32 = 39,546.20/x
  3. Step 3: Cross multiply
    66,404.38x = 91,627.32 × 39,546.20
  4. Step 4: Simplify right side
    66,404.38x = 3,623,512,322.18
  5. Step 5: Solve for x
    x = 3,623,512,322.18/66,404.38
  6. Step 6: Final answer
    x = 54,567.37

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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.