Home / 75,983.61-113,975.45-19,823.65

Finding the Fourth Proportional to 75,983.61, 113,975.45 and 19,823.65

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Solution

The fourth proportional to 75,983.61, 113,975.45 and 19,823.65 is: 29,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,983.61 : 113,975.45 = 19,823.65 : x
  2. Step 2: Convert to fraction form
    75,983.61/113,975.45 = 19,823.65/x
  3. Step 3: Cross multiply
    75,983.61x = 113,975.45 × 19,823.65
  4. Step 4: Simplify right side
    75,983.61x = 2,259,409,194.01
  5. Step 5: Solve for x
    x = 2,259,409,194.01/75,983.61
  6. Step 6: Final answer
    x = 29,735.48

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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.