Home / 45,314.56-67,994.08-20,372.20

Finding the Fourth Proportional to 45,314.56, 67,994.08 and 20,372.20

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Solution

The fourth proportional to 45,314.56, 67,994.08 and 20,372.20 is: 30,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,314.56 : 67,994.08 = 20,372.20 : x
  2. Step 2: Convert to fraction form
    45,314.56/67,994.08 = 20,372.20/x
  3. Step 3: Cross multiply
    45,314.56x = 67,994.08 × 20,372.20
  4. Step 4: Simplify right side
    45,314.56x = 1,385,188,996.58
  5. Step 5: Solve for x
    x = 1,385,188,996.58/45,314.56
  6. Step 6: Final answer
    x = 30,568.30

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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.