Home / 86,728.80-119,641.91-58,049.67

Finding the Fourth Proportional to 86,728.80, 119,641.91 and 58,049.67

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Solution

The fourth proportional to 86,728.80, 119,641.91 and 58,049.67 is: 80,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,728.80 : 119,641.91 = 58,049.67 : x
  2. Step 2: Convert to fraction form
    86,728.80/119,641.91 = 58,049.67/x
  3. Step 3: Cross multiply
    86,728.80x = 119,641.91 × 58,049.67
  4. Step 4: Simplify right side
    86,728.80x = 6,945,173,103.42
  5. Step 5: Solve for x
    x = 6,945,173,103.42/86,728.80
  6. Step 6: Final answer
    x = 80,079.20

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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.