Home / 40,981.78-56,559.09-25,076.80

Finding the Fourth Proportional to 40,981.78, 56,559.09 and 25,076.80

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Solution

The fourth proportional to 40,981.78, 56,559.09 and 25,076.80 is: 34,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,981.78 : 56,559.09 = 25,076.80 : x
  2. Step 2: Convert to fraction form
    40,981.78/56,559.09 = 25,076.80/x
  3. Step 3: Cross multiply
    40,981.78x = 56,559.09 × 25,076.80
  4. Step 4: Simplify right side
    40,981.78x = 1,418,320,988.11
  5. Step 5: Solve for x
    x = 1,418,320,988.11/40,981.78
  6. Step 6: Final answer
    x = 34,608.57

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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.