Home / 74,211.60-111,390.30-36,813.90

Finding the Fourth Proportional to 74,211.60, 111,390.30 and 36,813.90

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Solution

The fourth proportional to 74,211.60, 111,390.30 and 36,813.90 is: 55,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,211.60 : 111,390.30 = 36,813.90 : x
  2. Step 2: Convert to fraction form
    74,211.60/111,390.30 = 36,813.90/x
  3. Step 3: Cross multiply
    74,211.60x = 111,390.30 × 36,813.90
  4. Step 4: Simplify right side
    74,211.60x = 4,100,711,365.17
  5. Step 5: Solve for x
    x = 4,100,711,365.17/74,211.60
  6. Step 6: Final answer
    x = 55,257.01

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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.