Home / 75,244.49-112,865.60-18,318.86

Finding the Fourth Proportional to 75,244.49, 112,865.60 and 18,318.86

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Solution

The fourth proportional to 75,244.49, 112,865.60 and 18,318.86 is: 27,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,244.49 : 112,865.60 = 18,318.86 : x
  2. Step 2: Convert to fraction form
    75,244.49/112,865.60 = 18,318.86/x
  3. Step 3: Cross multiply
    75,244.49x = 112,865.60 × 18,318.86
  4. Step 4: Simplify right side
    75,244.49x = 2,067,569,029.93
  5. Step 5: Solve for x
    x = 2,067,569,029.93/75,244.49
  6. Step 6: Final answer
    x = 27,478.01

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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.