Home / 86,125.66-118,853.31-47,884.01

Finding the Fourth Proportional to 86,125.66, 118,853.31 and 47,884.01

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Solution

The fourth proportional to 86,125.66, 118,853.31 and 47,884.01 is: 66,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,125.66 : 118,853.31 = 47,884.01 : x
  2. Step 2: Convert to fraction form
    86,125.66/118,853.31 = 47,884.01/x
  3. Step 3: Cross multiply
    86,125.66x = 118,853.31 × 47,884.01
  4. Step 4: Simplify right side
    86,125.66x = 5,691,173,069.07
  5. Step 5: Solve for x
    x = 5,691,173,069.07/86,125.66
  6. Step 6: Final answer
    x = 66,079.88

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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.