Home / 66,035.41-91,128.09-35,820.16

Finding the Fourth Proportional to 66,035.41, 91,128.09 and 35,820.16

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Solution

The fourth proportional to 66,035.41, 91,128.09 and 35,820.16 is: 49,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,035.41 : 91,128.09 = 35,820.16 : x
  2. Step 2: Convert to fraction form
    66,035.41/91,128.09 = 35,820.16/x
  3. Step 3: Cross multiply
    66,035.41x = 91,128.09 × 35,820.16
  4. Step 4: Simplify right side
    66,035.41x = 3,264,222,764.29
  5. Step 5: Solve for x
    x = 3,264,222,764.29/66,035.41
  6. Step 6: Final answer
    x = 49,431.40

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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.