Home / 64,613.64-96,921.18-20,238.60

Finding the Fourth Proportional to 64,613.64, 96,921.18 and 20,238.60

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Solution

The fourth proportional to 64,613.64, 96,921.18 and 20,238.60 is: 30,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,613.64 : 96,921.18 = 20,238.60 : x
  2. Step 2: Convert to fraction form
    64,613.64/96,921.18 = 20,238.60/x
  3. Step 3: Cross multiply
    64,613.64x = 96,921.18 × 20,238.60
  4. Step 4: Simplify right side
    64,613.64x = 1,961,548,993.55
  5. Step 5: Solve for x
    x = 1,961,548,993.55/64,613.64
  6. Step 6: Final answer
    x = 30,358.13

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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.