Home / 74,487.45-111,567.15-66,176.85

Finding the Fourth Proportional to 74,487.45, 111,567.15 and 66,176.85

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Solution

The fourth proportional to 74,487.45, 111,567.15 and 66,176.85 is: 99,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,487.45 : 111,567.15 = 66,176.85 : x
  2. Step 2: Convert to fraction form
    74,487.45/111,567.15 = 66,176.85/x
  3. Step 3: Cross multiply
    74,487.45x = 111,567.15 × 66,176.85
  4. Step 4: Simplify right side
    74,487.45x = 7,383,162,550.48
  5. Step 5: Solve for x
    x = 7,383,162,550.48/74,487.45
  6. Step 6: Final answer
    x = 99,119.55

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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.