Home / 74,241.10-111,386.10-49,378.96

Finding the Fourth Proportional to 74,241.10, 111,386.10 and 49,378.96

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Solution

The fourth proportional to 74,241.10, 111,386.10 and 49,378.96 is: 74,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,241.10 : 111,386.10 = 49,378.96 : x
  2. Step 2: Convert to fraction form
    74,241.10/111,386.10 = 49,378.96/x
  3. Step 3: Cross multiply
    74,241.10x = 111,386.10 × 49,378.96
  4. Step 4: Simplify right side
    74,241.10x = 5,500,129,776.46
  5. Step 5: Solve for x
    x = 5,500,129,776.46/74,241.10
  6. Step 6: Final answer
    x = 74,084.70

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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.