Home / 79,407.08-119,107.20-20,240.98

Finding the Fourth Proportional to 79,407.08, 119,107.20 and 20,240.98

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Solution

The fourth proportional to 79,407.08, 119,107.20 and 20,240.98 is: 30,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,407.08 : 119,107.20 = 20,240.98 : x
  2. Step 2: Convert to fraction form
    79,407.08/119,107.20 = 20,240.98/x
  3. Step 3: Cross multiply
    79,407.08x = 119,107.20 × 20,240.98
  4. Step 4: Simplify right side
    79,407.08x = 2,410,846,750.82
  5. Step 5: Solve for x
    x = 2,410,846,750.82/79,407.08
  6. Step 6: Final answer
    x = 30,360.60

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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.