Home / 49,543.11-74,336.67-20,018.61

Finding the Fourth Proportional to 49,543.11, 74,336.67 and 20,018.61

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Solution

The fourth proportional to 49,543.11, 74,336.67 and 20,018.61 is: 30,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,543.11 : 74,336.67 = 20,018.61 : x
  2. Step 2: Convert to fraction form
    49,543.11/74,336.67 = 20,018.61/x
  3. Step 3: Cross multiply
    49,543.11x = 74,336.67 × 20,018.61
  4. Step 4: Simplify right side
    49,543.11x = 1,488,116,805.43
  5. Step 5: Solve for x
    x = 1,488,116,805.43/49,543.11
  6. Step 6: Final answer
    x = 30,036.81

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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.