Home / 85,072.35-117,399.83-47,355.51

Finding the Fourth Proportional to 85,072.35, 117,399.83 and 47,355.51

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Solution

The fourth proportional to 85,072.35, 117,399.83 and 47,355.51 is: 65,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.35 : 117,399.83 = 47,355.51 : x
  2. Step 2: Convert to fraction form
    85,072.35/117,399.83 = 47,355.51/x
  3. Step 3: Cross multiply
    85,072.35x = 117,399.83 × 47,355.51
  4. Step 4: Simplify right side
    85,072.35x = 5,559,528,823.56
  5. Step 5: Solve for x
    x = 5,559,528,823.56/85,072.35
  6. Step 6: Final answer
    x = 65,350.60

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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.