Home / 53,228.11-79,828.54-15,779.43

Finding the Fourth Proportional to 53,228.11, 79,828.54 and 15,779.43

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Solution

The fourth proportional to 53,228.11, 79,828.54 and 15,779.43 is: 23,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,228.11 : 79,828.54 = 15,779.43 : x
  2. Step 2: Convert to fraction form
    53,228.11/79,828.54 = 15,779.43/x
  3. Step 3: Cross multiply
    53,228.11x = 79,828.54 × 15,779.43
  4. Step 4: Simplify right side
    53,228.11x = 1,259,648,858.93
  5. Step 5: Solve for x
    x = 1,259,648,858.93/53,228.11
  6. Step 6: Final answer
    x = 23,665.11

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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.