Home / 50,647.18-69,892.70-27,987.70

Finding the Fourth Proportional to 50,647.18, 69,892.70 and 27,987.70

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Solution

The fourth proportional to 50,647.18, 69,892.70 and 27,987.70 is: 38,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,647.18 : 69,892.70 = 27,987.70 : x
  2. Step 2: Convert to fraction form
    50,647.18/69,892.70 = 27,987.70/x
  3. Step 3: Cross multiply
    50,647.18x = 69,892.70 × 27,987.70
  4. Step 4: Simplify right side
    50,647.18x = 1,956,135,919.79
  5. Step 5: Solve for x
    x = 1,956,135,919.79/50,647.18
  6. Step 6: Final answer
    x = 38,622.80

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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.