Home / 57,120.36-78,815.10-36,974.44

Finding the Fourth Proportional to 57,120.36, 78,815.10 and 36,974.44

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Solution

The fourth proportional to 57,120.36, 78,815.10 and 36,974.44 is: 51,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.36 : 78,815.10 = 36,974.44 : x
  2. Step 2: Convert to fraction form
    57,120.36/78,815.10 = 36,974.44/x
  3. Step 3: Cross multiply
    57,120.36x = 78,815.10 × 36,974.44
  4. Step 4: Simplify right side
    57,120.36x = 2,914,144,186.04
  5. Step 5: Solve for x
    x = 2,914,144,186.04/57,120.36
  6. Step 6: Final answer
    x = 51,017.61

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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.