Home / 80,680.81-111,337.93-44,870.05

Finding the Fourth Proportional to 80,680.81, 111,337.93 and 44,870.05

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Solution

The fourth proportional to 80,680.81, 111,337.93 and 44,870.05 is: 61,919.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,680.81 : 111,337.93 = 44,870.05 : x
  2. Step 2: Convert to fraction form
    80,680.81/111,337.93 = 44,870.05/x
  3. Step 3: Cross multiply
    80,680.81x = 111,337.93 × 44,870.05
  4. Step 4: Simplify right side
    80,680.81x = 4,995,738,486.00
  5. Step 5: Solve for x
    x = 4,995,738,486.00/80,680.81
  6. Step 6: Final answer
    x = 61,919.79

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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.