Home / 71,682.16-98,919.60-39,850.84

Finding the Fourth Proportional to 71,682.16, 98,919.60 and 39,850.84

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Solution

The fourth proportional to 71,682.16, 98,919.60 and 39,850.84 is: 54,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,682.16 : 98,919.60 = 39,850.84 : x
  2. Step 2: Convert to fraction form
    71,682.16/98,919.60 = 39,850.84/x
  3. Step 3: Cross multiply
    71,682.16x = 98,919.60 × 39,850.84
  4. Step 4: Simplify right side
    71,682.16x = 3,942,029,152.46
  5. Step 5: Solve for x
    x = 3,942,029,152.46/71,682.16
  6. Step 6: Final answer
    x = 54,993.17

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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.