Home / 56,520.20-84,780.30-43,438.60

Finding the Fourth Proportional to 56,520.20, 84,780.30 and 43,438.60

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Solution

The fourth proportional to 56,520.20, 84,780.30 and 43,438.60 is: 65,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,520.20 : 84,780.30 = 43,438.60 : x
  2. Step 2: Convert to fraction form
    56,520.20/84,780.30 = 43,438.60/x
  3. Step 3: Cross multiply
    56,520.20x = 84,780.30 × 43,438.60
  4. Step 4: Simplify right side
    56,520.20x = 3,682,737,539.58
  5. Step 5: Solve for x
    x = 3,682,737,539.58/56,520.20
  6. Step 6: Final answer
    x = 65,157.90

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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.