Home / 60,520.23-90,782.78-21,081.33

Finding the Fourth Proportional to 60,520.23, 90,782.78 and 21,081.33

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Solution

The fourth proportional to 60,520.23, 90,782.78 and 21,081.33 is: 31,622.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,520.23 : 90,782.78 = 21,081.33 : x
  2. Step 2: Convert to fraction form
    60,520.23/90,782.78 = 21,081.33/x
  3. Step 3: Cross multiply
    60,520.23x = 90,782.78 × 21,081.33
  4. Step 4: Simplify right side
    60,520.23x = 1,913,821,638.09
  5. Step 5: Solve for x
    x = 1,913,821,638.09/60,520.23
  6. Step 6: Final answer
    x = 31,622.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.