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Finding the Fourth Proportional to 43,676.31, 65,514.48 and 28,979.13

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Solution

The fourth proportional to 43,676.31, 65,514.48 and 28,979.13 is: 43,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,676.31 : 65,514.48 = 28,979.13 : x
  2. Step 2: Convert to fraction form
    43,676.31/65,514.48 = 28,979.13/x
  3. Step 3: Cross multiply
    43,676.31x = 65,514.48 × 28,979.13
  4. Step 4: Simplify right side
    43,676.31x = 1,898,552,632.80
  5. Step 5: Solve for x
    x = 1,898,552,632.80/43,676.31
  6. Step 6: Final answer
    x = 43,468.70

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1.5x scale

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.