Home / 53,144.08-79,720.24-21,539.10

Finding the Fourth Proportional to 53,144.08, 79,720.24 and 21,539.10

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Solution

The fourth proportional to 53,144.08, 79,720.24 and 21,539.10 is: 32,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,144.08 : 79,720.24 = 21,539.10 : x
  2. Step 2: Convert to fraction form
    53,144.08/79,720.24 = 21,539.10/x
  3. Step 3: Cross multiply
    53,144.08x = 79,720.24 × 21,539.10
  4. Step 4: Simplify right side
    53,144.08x = 1,717,102,221.38
  5. Step 5: Solve for x
    x = 1,717,102,221.38/53,144.08
  6. Step 6: Final answer
    x = 32,310.32

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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.