Home / 53,259.08-79,891.62-13,815.14

Finding the Fourth Proportional to 53,259.08, 79,891.62 and 13,815.14

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Solution

The fourth proportional to 53,259.08, 79,891.62 and 13,815.14 is: 20,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,259.08 : 79,891.62 = 13,815.14 : x
  2. Step 2: Convert to fraction form
    53,259.08/79,891.62 = 13,815.14/x
  3. Step 3: Cross multiply
    53,259.08x = 79,891.62 × 13,815.14
  4. Step 4: Simplify right side
    53,259.08x = 1,103,713,915.13
  5. Step 5: Solve for x
    x = 1,103,713,915.13/53,259.08
  6. Step 6: Final answer
    x = 20,723.49

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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.