Home / 40,711.78-61,100.48-20,995.98

Finding the Fourth Proportional to 40,711.78, 61,100.48 and 20,995.98

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Solution

The fourth proportional to 40,711.78, 61,100.48 and 20,995.98 is: 31,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,711.78 : 61,100.48 = 20,995.98 : x
  2. Step 2: Convert to fraction form
    40,711.78/61,100.48 = 20,995.98/x
  3. Step 3: Cross multiply
    40,711.78x = 61,100.48 × 20,995.98
  4. Step 4: Simplify right side
    40,711.78x = 1,282,864,161.33
  5. Step 5: Solve for x
    x = 1,282,864,161.33/40,711.78
  6. Step 6: Final answer
    x = 31,510.88

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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.