Home / 79,077.40-109,126.74-43,267.56

Finding the Fourth Proportional to 79,077.40, 109,126.74 and 43,267.56

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Solution

The fourth proportional to 79,077.40, 109,126.74 and 43,267.56 is: 59,709.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,077.40 : 109,126.74 = 43,267.56 : x
  2. Step 2: Convert to fraction form
    79,077.40/109,126.74 = 43,267.56/x
  3. Step 3: Cross multiply
    79,077.40x = 109,126.74 × 43,267.56
  4. Step 4: Simplify right side
    79,077.40x = 4,721,647,770.55
  5. Step 5: Solve for x
    x = 4,721,647,770.55/79,077.40
  6. Step 6: Final answer
    x = 59,709.19

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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.