Home / 81,115.57-111,994.83-52,504.48

Finding the Fourth Proportional to 81,115.57, 111,994.83 and 52,504.48

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Solution

The fourth proportional to 81,115.57, 111,994.83 and 52,504.48 is: 72,492.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,115.57 : 111,994.83 = 52,504.48 : x
  2. Step 2: Convert to fraction form
    81,115.57/111,994.83 = 52,504.48/x
  3. Step 3: Cross multiply
    81,115.57x = 111,994.83 × 52,504.48
  4. Step 4: Simplify right side
    81,115.57x = 5,880,230,311.84
  5. Step 5: Solve for x
    x = 5,880,230,311.84/81,115.57
  6. Step 6: Final answer
    x = 72,492.01

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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.