Home / 66,388.74-91,615.62-36,175.32

Finding the Fourth Proportional to 66,388.74, 91,615.62 and 36,175.32

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Solution

The fourth proportional to 66,388.74, 91,615.62 and 36,175.32 is: 49,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,388.74 : 91,615.62 = 36,175.32 : x
  2. Step 2: Convert to fraction form
    66,388.74/91,615.62 = 36,175.32/x
  3. Step 3: Cross multiply
    66,388.74x = 91,615.62 × 36,175.32
  4. Step 4: Simplify right side
    66,388.74x = 3,314,224,370.50
  5. Step 5: Solve for x
    x = 3,314,224,370.50/66,388.74
  6. Step 6: Final answer
    x = 49,921.48

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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.