Home / 75,278.07-112,927.91-40,198.59

Finding the Fourth Proportional to 75,278.07, 112,927.91 and 40,198.59

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Solution

The fourth proportional to 75,278.07, 112,927.91 and 40,198.59 is: 60,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,278.07 : 112,927.91 = 40,198.59 : x
  2. Step 2: Convert to fraction form
    75,278.07/112,927.91 = 40,198.59/x
  3. Step 3: Cross multiply
    75,278.07x = 112,927.91 × 40,198.59
  4. Step 4: Simplify right side
    75,278.07x = 4,539,542,552.65
  5. Step 5: Solve for x
    x = 4,539,542,552.65/75,278.07
  6. Step 6: Final answer
    x = 60,303.65

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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.