Home / 85,187.23-117,562.32-49,388.47

Finding the Fourth Proportional to 85,187.23, 117,562.32 and 49,388.47

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Solution

The fourth proportional to 85,187.23, 117,562.32 and 49,388.47 is: 68,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,187.23 : 117,562.32 = 49,388.47 : x
  2. Step 2: Convert to fraction form
    85,187.23/117,562.32 = 49,388.47/x
  3. Step 3: Cross multiply
    85,187.23x = 117,562.32 × 49,388.47
  4. Step 4: Simplify right side
    85,187.23x = 5,806,222,820.54
  5. Step 5: Solve for x
    x = 5,806,222,820.54/85,187.23
  6. Step 6: Final answer
    x = 68,158.37

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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.