Home / 86,840.68-119,838.18-49,115.56

Finding the Fourth Proportional to 86,840.68, 119,838.18 and 49,115.56

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Solution

The fourth proportional to 86,840.68, 119,838.18 and 49,115.56 is: 67,778.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,840.68 : 119,838.18 = 49,115.56 : x
  2. Step 2: Convert to fraction form
    86,840.68/119,838.18 = 49,115.56/x
  3. Step 3: Cross multiply
    86,840.68x = 119,838.18 × 49,115.56
  4. Step 4: Simplify right side
    86,840.68x = 5,885,919,320.08
  5. Step 5: Solve for x
    x = 5,885,919,320.08/86,840.68
  6. Step 6: Final answer
    x = 67,778.37

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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.