Home / 85,204.12-117,644.24-55,007.04

Finding the Fourth Proportional to 85,204.12, 117,644.24 and 55,007.04

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Solution

The fourth proportional to 85,204.12, 117,644.24 and 55,007.04 is: 75,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,204.12 : 117,644.24 = 55,007.04 : x
  2. Step 2: Convert to fraction form
    85,204.12/117,644.24 = 55,007.04/x
  3. Step 3: Cross multiply
    85,204.12x = 117,644.24 × 55,007.04
  4. Step 4: Simplify right side
    85,204.12x = 6,471,261,415.45
  5. Step 5: Solve for x
    x = 6,471,261,415.45/85,204.12
  6. Step 6: Final answer
    x = 75,950.10

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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.