Home / 74,228.20-111,428.70-44,679.40

Finding the Fourth Proportional to 74,228.20, 111,428.70 and 44,679.40

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Solution

The fourth proportional to 74,228.20, 111,428.70 and 44,679.40 is: 67,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,228.20 : 111,428.70 = 44,679.40 : x
  2. Step 2: Convert to fraction form
    74,228.20/111,428.70 = 44,679.40/x
  3. Step 3: Cross multiply
    74,228.20x = 111,428.70 × 44,679.40
  4. Step 4: Simplify right side
    74,228.20x = 4,978,567,458.78
  5. Step 5: Solve for x
    x = 4,978,567,458.78/74,228.20
  6. Step 6: Final answer
    x = 67,071.11

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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.