Home / 85,390.23-117,838.07-49,589.04

Finding the Fourth Proportional to 85,390.23, 117,838.07 and 49,589.04

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Solution

The fourth proportional to 85,390.23, 117,838.07 and 49,589.04 is: 68,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,390.23 : 117,838.07 = 49,589.04 : x
  2. Step 2: Convert to fraction form
    85,390.23/117,838.07 = 49,589.04/x
  3. Step 3: Cross multiply
    85,390.23x = 117,838.07 × 49,589.04
  4. Step 4: Simplify right side
    85,390.23x = 5,843,476,518.81
  5. Step 5: Solve for x
    x = 5,843,476,518.81/85,390.23
  6. Step 6: Final answer
    x = 68,432.61

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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.