Home / 53,778.10-80,861.55-52,611.70

Finding the Fourth Proportional to 53,778.10, 80,861.55 and 52,611.70

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Solution

The fourth proportional to 53,778.10, 80,861.55 and 52,611.70 is: 79,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,778.10 : 80,861.55 = 52,611.70 : x
  2. Step 2: Convert to fraction form
    53,778.10/80,861.55 = 52,611.70/x
  3. Step 3: Cross multiply
    53,778.10x = 80,861.55 × 52,611.70
  4. Step 4: Simplify right side
    53,778.10x = 4,254,263,610.14
  5. Step 5: Solve for x
    x = 4,254,263,610.14/53,778.10
  6. Step 6: Final answer
    x = 79,107.73

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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.