Home / 85,305.04-117,719.22-49,498.54

Finding the Fourth Proportional to 85,305.04, 117,719.22 and 49,498.54

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Solution

The fourth proportional to 85,305.04, 117,719.22 and 49,498.54 is: 68,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,305.04 : 117,719.22 = 49,498.54 : x
  2. Step 2: Convert to fraction form
    85,305.04/117,719.22 = 49,498.54/x
  3. Step 3: Cross multiply
    85,305.04x = 117,719.22 × 49,498.54
  4. Step 4: Simplify right side
    85,305.04x = 5,826,929,519.94
  5. Step 5: Solve for x
    x = 5,826,929,519.94/85,305.04
  6. Step 6: Final answer
    x = 68,306.98

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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.