Home / 80,675.65-111,286.96-48,401.70

Finding the Fourth Proportional to 80,675.65, 111,286.96 and 48,401.70

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Solution

The fourth proportional to 80,675.65, 111,286.96 and 48,401.70 is: 66,767.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,675.65 : 111,286.96 = 48,401.70 : x
  2. Step 2: Convert to fraction form
    80,675.65/111,286.96 = 48,401.70/x
  3. Step 3: Cross multiply
    80,675.65x = 111,286.96 × 48,401.70
  4. Step 4: Simplify right side
    80,675.65x = 5,386,478,051.83
  5. Step 5: Solve for x
    x = 5,386,478,051.83/80,675.65
  6. Step 6: Final answer
    x = 66,767.09

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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.