Home / 90,678.14-125,135.89-50,395.65

Finding the Fourth Proportional to 90,678.14, 125,135.89 and 50,395.65

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Solution

The fourth proportional to 90,678.14, 125,135.89 and 50,395.65 is: 69,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,678.14 : 125,135.89 = 50,395.65 : x
  2. Step 2: Convert to fraction form
    90,678.14/125,135.89 = 50,395.65/x
  3. Step 3: Cross multiply
    90,678.14x = 125,135.89 × 50,395.65
  4. Step 4: Simplify right side
    90,678.14x = 6,306,304,514.88
  5. Step 5: Solve for x
    x = 6,306,304,514.88/90,678.14
  6. Step 6: Final answer
    x = 69,546.03

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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.