Home / 85,016.55-117,310.45-51,017.81

Finding the Fourth Proportional to 85,016.55, 117,310.45 and 51,017.81

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Solution

The fourth proportional to 85,016.55, 117,310.45 and 51,017.81 is: 70,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,016.55 : 117,310.45 = 51,017.81 : x
  2. Step 2: Convert to fraction form
    85,016.55/117,310.45 = 51,017.81/x
  3. Step 3: Cross multiply
    85,016.55x = 117,310.45 × 51,017.81
  4. Step 4: Simplify right side
    85,016.55x = 5,984,922,249.11
  5. Step 5: Solve for x
    x = 5,984,922,249.11/85,016.55
  6. Step 6: Final answer
    x = 70,397.15

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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.