Home / 85,271.40-117,643.68-49,441.68

Finding the Fourth Proportional to 85,271.40, 117,643.68 and 49,441.68

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Solution

The fourth proportional to 85,271.40, 117,643.68 and 49,441.68 is: 68,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271.40 : 117,643.68 = 49,441.68 : x
  2. Step 2: Convert to fraction form
    85,271.40/117,643.68 = 49,441.68/x
  3. Step 3: Cross multiply
    85,271.40x = 117,643.68 × 49,441.68
  4. Step 4: Simplify right side
    85,271.40x = 5,816,501,180.58
  5. Step 5: Solve for x
    x = 5,816,501,180.58/85,271.40
  6. Step 6: Final answer
    x = 68,211.63

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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.