Home / 86,519.54-119,401.49-50,721.05

Finding the Fourth Proportional to 86,519.54, 119,401.49 and 50,721.05

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Solution

The fourth proportional to 86,519.54, 119,401.49 and 50,721.05 is: 69,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,519.54 : 119,401.49 = 50,721.05 : x
  2. Step 2: Convert to fraction form
    86,519.54/119,401.49 = 50,721.05/x
  3. Step 3: Cross multiply
    86,519.54x = 119,401.49 × 50,721.05
  4. Step 4: Simplify right side
    86,519.54x = 6,056,169,369.67
  5. Step 5: Solve for x
    x = 6,056,169,369.67/86,519.54
  6. Step 6: Final answer
    x = 69,997.70

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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.