Home / 45,824.20-68,736.30-20,876.20

Finding the Fourth Proportional to 45,824.20, 68,736.30 and 20,876.20

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Solution

The fourth proportional to 45,824.20, 68,736.30 and 20,876.20 is: 31,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,824.20 : 68,736.30 = 20,876.20 : x
  2. Step 2: Convert to fraction form
    45,824.20/68,736.30 = 20,876.20/x
  3. Step 3: Cross multiply
    45,824.20x = 68,736.30 × 20,876.20
  4. Step 4: Simplify right side
    45,824.20x = 1,434,952,746.06
  5. Step 5: Solve for x
    x = 1,434,952,746.06/45,824.20
  6. Step 6: Final answer
    x = 31,314.30

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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.