Home / 49,443.39-74,135.19-19,421.69

Finding the Fourth Proportional to 49,443.39, 74,135.19 and 19,421.69

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Solution

The fourth proportional to 49,443.39, 74,135.19 and 19,421.69 is: 29,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,443.39 : 74,135.19 = 19,421.69 : x
  2. Step 2: Convert to fraction form
    49,443.39/74,135.19 = 19,421.69/x
  3. Step 3: Cross multiply
    49,443.39x = 74,135.19 × 19,421.69
  4. Step 4: Simplify right side
    49,443.39x = 1,439,830,581.16
  5. Step 5: Solve for x
    x = 1,439,830,581.16/49,443.39
  6. Step 6: Final answer
    x = 29,120.79

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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.