Home / 40,435.20-55,814.40-34,905.60

Finding the Fourth Proportional to 40,435.20, 55,814.40 and 34,905.60

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Solution

The fourth proportional to 40,435.20, 55,814.40 and 34,905.60 is: 48,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,435.20 : 55,814.40 = 34,905.60 : x
  2. Step 2: Convert to fraction form
    40,435.20/55,814.40 = 34,905.60/x
  3. Step 3: Cross multiply
    40,435.20x = 55,814.40 × 34,905.60
  4. Step 4: Simplify right side
    40,435.20x = 1,948,235,120.64
  5. Step 5: Solve for x
    x = 1,948,235,120.64/40,435.20
  6. Step 6: Final answer
    x = 48,181.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.