Home / 86,960.73-130,499.55-30,800.64

Finding the Fourth Proportional to 86,960.73, 130,499.55 and 30,800.64

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Solution

The fourth proportional to 86,960.73, 130,499.55 and 30,800.64 is: 46,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960.73 : 130,499.55 = 30,800.64 : x
  2. Step 2: Convert to fraction form
    86,960.73/130,499.55 = 30,800.64/x
  3. Step 3: Cross multiply
    86,960.73x = 130,499.55 × 30,800.64
  4. Step 4: Simplify right side
    86,960.73x = 4,019,469,659.71
  5. Step 5: Solve for x
    x = 4,019,469,659.71/86,960.73
  6. Step 6: Final answer
    x = 46,221.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.