Home / 49,455.13-74,181.64-12,015.40

Finding the Fourth Proportional to 49,455.13, 74,181.64 and 12,015.40

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Solution

The fourth proportional to 49,455.13, 74,181.64 and 12,015.40 is: 18,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,455.13 : 74,181.64 = 12,015.40 : x
  2. Step 2: Convert to fraction form
    49,455.13/74,181.64 = 12,015.40/x
  3. Step 3: Cross multiply
    49,455.13x = 74,181.64 × 12,015.40
  4. Step 4: Simplify right side
    49,455.13x = 891,322,077.01
  5. Step 5: Solve for x
    x = 891,322,077.01/49,455.13
  6. Step 6: Final answer
    x = 18,022.84

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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.