Home / 74,298.53-111,447.39-18,138.93

Finding the Fourth Proportional to 74,298.53, 111,447.39 and 18,138.93

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Solution

The fourth proportional to 74,298.53, 111,447.39 and 18,138.93 is: 27,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,298.53 : 111,447.39 = 18,138.93 : x
  2. Step 2: Convert to fraction form
    74,298.53/111,447.39 = 18,138.93/x
  3. Step 3: Cross multiply
    74,298.53x = 111,447.39 × 18,138.93
  4. Step 4: Simplify right side
    74,298.53x = 2,021,536,405.89
  5. Step 5: Solve for x
    x = 2,021,536,405.89/74,298.53
  6. Step 6: Final answer
    x = 27,208.30

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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.