Home / 66,122-91,256.68-40,975.28

Finding the Fourth Proportional to 66,122, 91,256.68 and 40,975.28

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Solution

The fourth proportional to 66,122, 91,256.68 and 40,975.28 is: 56,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122 : 91,256.68 = 40,975.28 : x
  2. Step 2: Convert to fraction form
    66,122/91,256.68 = 40,975.28/x
  3. Step 3: Cross multiply
    66,122x = 91,256.68 × 40,975.28
  4. Step 4: Simplify right side
    66,122x = 3,739,268,014.87
  5. Step 5: Solve for x
    x = 3,739,268,014.87/66,122
  6. Step 6: Final answer
    x = 56,551.04

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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.