Home / 48,286.08-72,368.64-20,551.68

Finding the Fourth Proportional to 48,286.08, 72,368.64 and 20,551.68

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Solution

The fourth proportional to 48,286.08, 72,368.64 and 20,551.68 is: 30,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,286.08 : 72,368.64 = 20,551.68 : x
  2. Step 2: Convert to fraction form
    48,286.08/72,368.64 = 20,551.68/x
  3. Step 3: Cross multiply
    48,286.08x = 72,368.64 × 20,551.68
  4. Step 4: Simplify right side
    48,286.08x = 1,487,297,131.32
  5. Step 5: Solve for x
    x = 1,487,297,131.32/48,286.08
  6. Step 6: Final answer
    x = 30,801.78

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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.