Home / 53,154.12-79,734.09-21,559.49

Finding the Fourth Proportional to 53,154.12, 79,734.09 and 21,559.49

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Solution

The fourth proportional to 53,154.12, 79,734.09 and 21,559.49 is: 32,340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,154.12 : 79,734.09 = 21,559.49 : x
  2. Step 2: Convert to fraction form
    53,154.12/79,734.09 = 21,559.49/x
  3. Step 3: Cross multiply
    53,154.12x = 79,734.09 × 21,559.49
  4. Step 4: Simplify right side
    53,154.12x = 1,719,026,316.01
  5. Step 5: Solve for x
    x = 1,719,026,316.01/53,154.12
  6. Step 6: Final answer
    x = 32,340.42

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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.