Home / 86,984.91-120,039.50-50,707.85

Finding the Fourth Proportional to 86,984.91, 120,039.50 and 50,707.85

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Solution

The fourth proportional to 86,984.91, 120,039.50 and 50,707.85 is: 69,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,984.91 : 120,039.50 = 50,707.85 : x
  2. Step 2: Convert to fraction form
    86,984.91/120,039.50 = 50,707.85/x
  3. Step 3: Cross multiply
    86,984.91x = 120,039.50 × 50,707.85
  4. Step 4: Simplify right side
    86,984.91x = 6,086,944,486.65
  5. Step 5: Solve for x
    x = 6,086,944,486.65/86,984.91
  6. Step 6: Final answer
    x = 69,977.02

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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.