Home / 75,584.20-113,376.30-42,406.60

Finding the Fourth Proportional to 75,584.20, 113,376.30 and 42,406.60

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Solution

The fourth proportional to 75,584.20, 113,376.30 and 42,406.60 is: 63,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,584.20 : 113,376.30 = 42,406.60 : x
  2. Step 2: Convert to fraction form
    75,584.20/113,376.30 = 42,406.60/x
  3. Step 3: Cross multiply
    75,584.20x = 113,376.30 × 42,406.60
  4. Step 4: Simplify right side
    75,584.20x = 4,807,903,403.58
  5. Step 5: Solve for x
    x = 4,807,903,403.58/75,584.20
  6. Step 6: Final answer
    x = 63,609.90

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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.