Home / 74,200.39-111,299.57-18,040.35

Finding the Fourth Proportional to 74,200.39, 111,299.57 and 18,040.35

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Solution

The fourth proportional to 74,200.39, 111,299.57 and 18,040.35 is: 27,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.39 : 111,299.57 = 18,040.35 : x
  2. Step 2: Convert to fraction form
    74,200.39/111,299.57 = 18,040.35/x
  3. Step 3: Cross multiply
    74,200.39x = 111,299.57 × 18,040.35
  4. Step 4: Simplify right side
    74,200.39x = 2,007,883,592.47
  5. Step 5: Solve for x
    x = 2,007,883,592.47/74,200.39
  6. Step 6: Final answer
    x = 27,060.28

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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.