Home / 85,015.17-117,308.55-51,016.43

Finding the Fourth Proportional to 85,015.17, 117,308.55 and 51,016.43

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Solution

The fourth proportional to 85,015.17, 117,308.55 and 51,016.43 is: 70,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,015.17 : 117,308.55 = 51,016.43 : x
  2. Step 2: Convert to fraction form
    85,015.17/117,308.55 = 51,016.43/x
  3. Step 3: Cross multiply
    85,015.17x = 117,308.55 × 51,016.43
  4. Step 4: Simplify right side
    85,015.17x = 5,984,663,914.06
  5. Step 5: Solve for x
    x = 5,984,663,914.06/85,015.17
  6. Step 6: Final answer
    x = 70,395.25

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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.