Home / 74,109.60-111,237.30-36,711.90

Finding the Fourth Proportional to 74,109.60, 111,237.30 and 36,711.90

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Solution

The fourth proportional to 74,109.60, 111,237.30 and 36,711.90 is: 55,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.60 : 111,237.30 = 36,711.90 : x
  2. Step 2: Convert to fraction form
    74,109.60/111,237.30 = 36,711.90/x
  3. Step 3: Cross multiply
    74,109.60x = 111,237.30 × 36,711.90
  4. Step 4: Simplify right side
    74,109.60x = 4,083,732,633.87
  5. Step 5: Solve for x
    x = 4,083,732,633.87/74,109.60
  6. Step 6: Final answer
    x = 55,103.96

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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.