Home / 79,007.85-109,031.07-43,198.45

Finding the Fourth Proportional to 79,007.85, 109,031.07 and 43,198.45

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Solution

The fourth proportional to 79,007.85, 109,031.07 and 43,198.45 is: 59,613.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,007.85 : 109,031.07 = 43,198.45 : x
  2. Step 2: Convert to fraction form
    79,007.85/109,031.07 = 43,198.45/x
  3. Step 3: Cross multiply
    79,007.85x = 109,031.07 × 43,198.45
  4. Step 4: Simplify right side
    79,007.85x = 4,709,973,225.84
  5. Step 5: Solve for x
    x = 4,709,973,225.84/79,007.85
  6. Step 6: Final answer
    x = 59,613.99

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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.