Home / 80,282.48-110,450.25-78,068.14

Finding the Fourth Proportional to 80,282.48, 110,450.25 and 78,068.14

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Solution

The fourth proportional to 80,282.48, 110,450.25 and 78,068.14 is: 107,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,282.48 : 110,450.25 = 78,068.14 : x
  2. Step 2: Convert to fraction form
    80,282.48/110,450.25 = 78,068.14/x
  3. Step 3: Cross multiply
    80,282.48x = 110,450.25 × 78,068.14
  4. Step 4: Simplify right side
    80,282.48x = 8,622,645,303.91
  5. Step 5: Solve for x
    x = 8,622,645,303.91/80,282.48
  6. Step 6: Final answer
    x = 107,403.83

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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.