Home / 76,720.40-115,096.28-32,347.20

Finding the Fourth Proportional to 76,720.40, 115,096.28 and 32,347.20

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Solution

The fourth proportional to 76,720.40, 115,096.28 and 32,347.20 is: 48,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,720.40 : 115,096.28 = 32,347.20 : x
  2. Step 2: Convert to fraction form
    76,720.40/115,096.28 = 32,347.20/x
  3. Step 3: Cross multiply
    76,720.40x = 115,096.28 × 32,347.20
  4. Step 4: Simplify right side
    76,720.40x = 3,723,042,388.42
  5. Step 5: Solve for x
    x = 3,723,042,388.42/76,720.40
  6. Step 6: Final answer
    x = 48,527.41

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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.