Home / 85,356.08-117,791.52-47,629.52

Finding the Fourth Proportional to 85,356.08, 117,791.52 and 47,629.52

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Solution

The fourth proportional to 85,356.08, 117,791.52 and 47,629.52 is: 65,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,356.08 : 117,791.52 = 47,629.52 : x
  2. Step 2: Convert to fraction form
    85,356.08/117,791.52 = 47,629.52/x
  3. Step 3: Cross multiply
    85,356.08x = 117,791.52 × 47,629.52
  4. Step 4: Simplify right side
    85,356.08x = 5,610,353,557.67
  5. Step 5: Solve for x
    x = 5,610,353,557.67/85,356.08
  6. Step 6: Final answer
    x = 65,728.81

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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.