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Finding the Fourth Proportional to 79,514.37, 109,616.90 and 63,239

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Solution

The fourth proportional to 79,514.37, 109,616.90 and 63,239 is: 87,180.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,514.37 : 109,616.90 = 63,239 : x
  2. Step 2: Convert to fraction form
    79,514.37/109,616.90 = 63,239/x
  3. Step 3: Cross multiply
    79,514.37x = 109,616.90 × 63,239
  4. Step 4: Simplify right side
    79,514.37x = 6,932,063,139.10
  5. Step 5: Solve for x
    x = 6,932,063,139.10/79,514.37
  6. Step 6: Final answer
    x = 87,180.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.