Home / 64,497.20-96,742.39-20,118.87

Finding the Fourth Proportional to 64,497.20, 96,742.39 and 20,118.87

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Solution

The fourth proportional to 64,497.20, 96,742.39 and 20,118.87 is: 30,177.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,497.20 : 96,742.39 = 20,118.87 : x
  2. Step 2: Convert to fraction form
    64,497.20/96,742.39 = 20,118.87/x
  3. Step 3: Cross multiply
    64,497.20x = 96,742.39 × 20,118.87
  4. Step 4: Simplify right side
    64,497.20x = 1,946,347,517.60
  5. Step 5: Solve for x
    x = 1,946,347,517.60/64,497.20
  6. Step 6: Final answer
    x = 30,177.24

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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.