Home / 75,884.48-113,828.40-19,726.80

Finding the Fourth Proportional to 75,884.48, 113,828.40 and 19,726.80

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Solution

The fourth proportional to 75,884.48, 113,828.40 and 19,726.80 is: 29,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,884.48 : 113,828.40 = 19,726.80 : x
  2. Step 2: Convert to fraction form
    75,884.48/113,828.40 = 19,726.80/x
  3. Step 3: Cross multiply
    75,884.48x = 113,828.40 × 19,726.80
  4. Step 4: Simplify right side
    75,884.48x = 2,245,470,081.12
  5. Step 5: Solve for x
    x = 2,245,470,081.12/75,884.48
  6. Step 6: Final answer
    x = 29,590.64

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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.