Home / 86,993.57-120,045.44-51,176.66

Finding the Fourth Proportional to 86,993.57, 120,045.44 and 51,176.66

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Solution

The fourth proportional to 86,993.57, 120,045.44 and 51,176.66 is: 70,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,993.57 : 120,045.44 = 51,176.66 : x
  2. Step 2: Convert to fraction form
    86,993.57/120,045.44 = 51,176.66/x
  3. Step 3: Cross multiply
    86,993.57x = 120,045.44 × 51,176.66
  4. Step 4: Simplify right side
    86,993.57x = 6,143,524,667.43
  5. Step 5: Solve for x
    x = 6,143,524,667.43/86,993.57
  6. Step 6: Final answer
    x = 70,620.45

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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.