Home / 45,422.40-68,152.50-20,445.24

Finding the Fourth Proportional to 45,422.40, 68,152.50 and 20,445.24

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Solution

The fourth proportional to 45,422.40, 68,152.50 and 20,445.24 is: 30,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,422.40 : 68,152.50 = 20,445.24 : x
  2. Step 2: Convert to fraction form
    45,422.40/68,152.50 = 20,445.24/x
  3. Step 3: Cross multiply
    45,422.40x = 68,152.50 × 20,445.24
  4. Step 4: Simplify right side
    45,422.40x = 1,393,394,219.10
  5. Step 5: Solve for x
    x = 1,393,394,219.10/45,422.40
  6. Step 6: Final answer
    x = 30,676.37

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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.