Home / 58,218.30-80,371.85-39,198.08

Finding the Fourth Proportional to 58,218.30, 80,371.85 and 39,198.08

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Solution

The fourth proportional to 58,218.30, 80,371.85 and 39,198.08 is: 54,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,218.30 : 80,371.85 = 39,198.08 : x
  2. Step 2: Convert to fraction form
    58,218.30/80,371.85 = 39,198.08/x
  3. Step 3: Cross multiply
    58,218.30x = 80,371.85 × 39,198.08
  4. Step 4: Simplify right side
    58,218.30x = 3,150,422,210.99
  5. Step 5: Solve for x
    x = 3,150,422,210.99/58,218.30
  6. Step 6: Final answer
    x = 54,113.95

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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.