Home / 79,009.30-109,031.70-43,198.39

Finding the Fourth Proportional to 79,009.30, 109,031.70 and 43,198.39

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Solution

The fourth proportional to 79,009.30, 109,031.70 and 43,198.39 is: 59,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,009.30 : 109,031.70 = 43,198.39 : x
  2. Step 2: Convert to fraction form
    79,009.30/109,031.70 = 43,198.39/x
  3. Step 3: Cross multiply
    79,009.30x = 109,031.70 × 43,198.39
  4. Step 4: Simplify right side
    79,009.30x = 4,709,993,898.96
  5. Step 5: Solve for x
    x = 4,709,993,898.96/79,009.30
  6. Step 6: Final answer
    x = 59,613.16

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1.5x scale

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.