Home / 86,170.41-118,915.16-50,390.48

Finding the Fourth Proportional to 86,170.41, 118,915.16 and 50,390.48

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Solution

The fourth proportional to 86,170.41, 118,915.16 and 50,390.48 is: 69,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,170.41 : 118,915.16 = 50,390.48 : x
  2. Step 2: Convert to fraction form
    86,170.41/118,915.16 = 50,390.48/x
  3. Step 3: Cross multiply
    86,170.41x = 118,915.16 × 50,390.48
  4. Step 4: Simplify right side
    86,170.41x = 5,992,191,969.01
  5. Step 5: Solve for x
    x = 5,992,191,969.01/86,170.41
  6. Step 6: Final answer
    x = 69,538.86

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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.