Home / 85,406.18-117,851.54-49,589.18

Finding the Fourth Proportional to 85,406.18, 117,851.54 and 49,589.18

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Solution

The fourth proportional to 85,406.18, 117,851.54 and 49,589.18 is: 68,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,406.18 : 117,851.54 = 49,589.18 : x
  2. Step 2: Convert to fraction form
    85,406.18/117,851.54 = 49,589.18/x
  3. Step 3: Cross multiply
    85,406.18x = 117,851.54 × 49,589.18
  4. Step 4: Simplify right side
    85,406.18x = 5,844,161,230.34
  5. Step 5: Solve for x
    x = 5,844,161,230.34/85,406.18
  6. Step 6: Final answer
    x = 68,427.85

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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.