Home / 85,448.12-117,916.97-49,638.42

Finding the Fourth Proportional to 85,448.12, 117,916.97 and 49,638.42

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Solution

The fourth proportional to 85,448.12, 117,916.97 and 49,638.42 is: 68,500.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,448.12 : 117,916.97 = 49,638.42 : x
  2. Step 2: Convert to fraction form
    85,448.12/117,916.97 = 49,638.42/x
  3. Step 3: Cross multiply
    85,448.12x = 117,916.97 × 49,638.42
  4. Step 4: Simplify right side
    85,448.12x = 5,853,211,833.80
  5. Step 5: Solve for x
    x = 5,853,211,833.80/85,448.12
  6. Step 6: Final answer
    x = 68,500.19

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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.