Home / 45,375.52-68,039.88-20,394.24

Finding the Fourth Proportional to 45,375.52, 68,039.88 and 20,394.24

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Solution

The fourth proportional to 45,375.52, 68,039.88 and 20,394.24 is: 30,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,375.52 : 68,039.88 = 20,394.24 : x
  2. Step 2: Convert to fraction form
    45,375.52/68,039.88 = 20,394.24/x
  3. Step 3: Cross multiply
    45,375.52x = 68,039.88 × 20,394.24
  4. Step 4: Simplify right side
    45,375.52x = 1,387,621,642.29
  5. Step 5: Solve for x
    x = 1,387,621,642.29/45,375.52
  6. Step 6: Final answer
    x = 30,580.84

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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.