Home / 53,103.39-79,655.31-21,514.07

Finding the Fourth Proportional to 53,103.39, 79,655.31 and 21,514.07

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Solution

The fourth proportional to 53,103.39, 79,655.31 and 21,514.07 is: 32,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,103.39 : 79,655.31 = 21,514.07 : x
  2. Step 2: Convert to fraction form
    53,103.39/79,655.31 = 21,514.07/x
  3. Step 3: Cross multiply
    53,103.39x = 79,655.31 × 21,514.07
  4. Step 4: Simplify right side
    53,103.39x = 1,713,709,915.21
  5. Step 5: Solve for x
    x = 1,713,709,915.21/53,103.39
  6. Step 6: Final answer
    x = 32,271.20

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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.