Home / 76,779.02-115,152.21-32,388.62

Finding the Fourth Proportional to 76,779.02, 115,152.21 and 32,388.62

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Solution

The fourth proportional to 76,779.02, 115,152.21 and 32,388.62 is: 48,576.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779.02 : 115,152.21 = 32,388.62 : x
  2. Step 2: Convert to fraction form
    76,779.02/115,152.21 = 32,388.62/x
  3. Step 3: Cross multiply
    76,779.02x = 115,152.21 × 32,388.62
  4. Step 4: Simplify right side
    76,779.02x = 3,729,621,171.85
  5. Step 5: Solve for x
    x = 3,729,621,171.85/76,779.02
  6. Step 6: Final answer
    x = 48,576.05

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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.