Home / 52,138.85-71,923.87-31,727.15

Finding the Fourth Proportional to 52,138.85, 71,923.87 and 31,727.15

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Solution

The fourth proportional to 52,138.85, 71,923.87 and 31,727.15 is: 43,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,138.85 : 71,923.87 = 31,727.15 : x
  2. Step 2: Convert to fraction form
    52,138.85/71,923.87 = 31,727.15/x
  3. Step 3: Cross multiply
    52,138.85x = 71,923.87 × 31,727.15
  4. Step 4: Simplify right side
    52,138.85x = 2,281,939,412.07
  5. Step 5: Solve for x
    x = 2,281,939,412.07/52,138.85
  6. Step 6: Final answer
    x = 43,766.59

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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.