Home / 42,171.14-63,247.37-12,178.87

Finding the Fourth Proportional to 42,171.14, 63,247.37 and 12,178.87

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Solution

The fourth proportional to 42,171.14, 63,247.37 and 12,178.87 is: 18,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.14 : 63,247.37 = 12,178.87 : x
  2. Step 2: Convert to fraction form
    42,171.14/63,247.37 = 12,178.87/x
  3. Step 3: Cross multiply
    42,171.14x = 63,247.37 × 12,178.87
  4. Step 4: Simplify right side
    42,171.14x = 770,281,180.84
  5. Step 5: Solve for x
    x = 770,281,180.84/42,171.14
  6. Step 6: Final answer
    x = 18,265.60

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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.