Home / 75,890.08-113,778.87-36,409.60

Finding the Fourth Proportional to 75,890.08, 113,778.87 and 36,409.60

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Solution

The fourth proportional to 75,890.08, 113,778.87 and 36,409.60 is: 54,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,890.08 : 113,778.87 = 36,409.60 : x
  2. Step 2: Convert to fraction form
    75,890.08/113,778.87 = 36,409.60/x
  3. Step 3: Cross multiply
    75,890.08x = 113,778.87 × 36,409.60
  4. Step 4: Simplify right side
    75,890.08x = 4,142,643,145.15
  5. Step 5: Solve for x
    x = 4,142,643,145.15/75,890.08
  6. Step 6: Final answer
    x = 54,587.41

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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.