Home / 52,480.20-78,720.30-32,505.60

Finding the Fourth Proportional to 52,480.20, 78,720.30 and 32,505.60

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Solution

The fourth proportional to 52,480.20, 78,720.30 and 32,505.60 is: 48,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.20 : 78,720.30 = 32,505.60 : x
  2. Step 2: Convert to fraction form
    52,480.20/78,720.30 = 32,505.60/x
  3. Step 3: Cross multiply
    52,480.20x = 78,720.30 × 32,505.60
  4. Step 4: Simplify right side
    52,480.20x = 2,558,850,583.68
  5. Step 5: Solve for x
    x = 2,558,850,583.68/52,480.20
  6. Step 6: Final answer
    x = 48,758.40

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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.