Home / 40,489.05-60,609-26,418.78

Finding the Fourth Proportional to 40,489.05, 60,609 and 26,418.78

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Solution

The fourth proportional to 40,489.05, 60,609 and 26,418.78 is: 39,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,489.05 : 60,609 = 26,418.78 : x
  2. Step 2: Convert to fraction form
    40,489.05/60,609 = 26,418.78/x
  3. Step 3: Cross multiply
    40,489.05x = 60,609 × 26,418.78
  4. Step 4: Simplify right side
    40,489.05x = 1,601,215,837.02
  5. Step 5: Solve for x
    x = 1,601,215,837.02/40,489.05
  6. Step 6: Final answer
    x = 39,546.89

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1.5x scale

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.