Home / 40,775.20-61,162.80-11,197.60

Finding the Fourth Proportional to 40,775.20, 61,162.80 and 11,197.60

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Solution

The fourth proportional to 40,775.20, 61,162.80 and 11,197.60 is: 16,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,775.20 : 61,162.80 = 11,197.60 : x
  2. Step 2: Convert to fraction form
    40,775.20/61,162.80 = 11,197.60/x
  3. Step 3: Cross multiply
    40,775.20x = 61,162.80 × 11,197.60
  4. Step 4: Simplify right side
    40,775.20x = 684,876,569.28
  5. Step 5: Solve for x
    x = 684,876,569.28/40,775.20
  6. Step 6: Final answer
    x = 16,796.40

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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.