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Finding the Fourth Proportional to 64,636.70, 96,954.87 and 20,263.64

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Solution

The fourth proportional to 64,636.70, 96,954.87 and 20,263.64 is: 30,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,636.70 : 96,954.87 = 20,263.64 : x
  2. Step 2: Convert to fraction form
    64,636.70/96,954.87 = 20,263.64/x
  3. Step 3: Cross multiply
    64,636.70x = 96,954.87 × 20,263.64
  4. Step 4: Simplify right side
    64,636.70x = 1,964,658,581.93
  5. Step 5: Solve for x
    x = 1,964,658,581.93/64,636.70
  6. Step 6: Final answer
    x = 30,395.40

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1.5x scale

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.