Home / 49,615.64-74,425.88-20,029.78

Finding the Fourth Proportional to 49,615.64, 74,425.88 and 20,029.78

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Solution

The fourth proportional to 49,615.64, 74,425.88 and 20,029.78 is: 30,045.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,615.64 : 74,425.88 = 20,029.78 : x
  2. Step 2: Convert to fraction form
    49,615.64/74,425.88 = 20,029.78/x
  3. Step 3: Cross multiply
    49,615.64x = 74,425.88 × 20,029.78
  4. Step 4: Simplify right side
    49,615.64x = 1,490,733,866.72
  5. Step 5: Solve for x
    x = 1,490,733,866.72/49,615.64
  6. Step 6: Final answer
    x = 30,045.65

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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.