Home / 48,722.64-73,032.12-20,636.88

Finding the Fourth Proportional to 48,722.64, 73,032.12 and 20,636.88

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Solution

The fourth proportional to 48,722.64, 73,032.12 and 20,636.88 is: 30,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,722.64 : 73,032.12 = 20,636.88 : x
  2. Step 2: Convert to fraction form
    48,722.64/73,032.12 = 20,636.88/x
  3. Step 3: Cross multiply
    48,722.64x = 73,032.12 × 20,636.88
  4. Step 4: Simplify right side
    48,722.64x = 1,507,155,096.59
  5. Step 5: Solve for x
    x = 1,507,155,096.59/48,722.64
  6. Step 6: Final answer
    x = 30,933.36

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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.