Home / 324,551.12-486,828.50-87,895.85

Finding the Fourth Proportional to 324,551.12, 486,828.50 and 87,895.85

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Solution

The fourth proportional to 324,551.12, 486,828.50 and 87,895.85 is: 131,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,551.12 : 486,828.50 = 87,895.85 : x
  2. Step 2: Convert to fraction form
    324,551.12/486,828.50 = 87,895.85/x
  3. Step 3: Cross multiply
    324,551.12x = 486,828.50 × 87,895.85
  4. Step 4: Simplify right side
    324,551.12x = 42,790,201,938.10
  5. Step 5: Solve for x
    x = 42,790,201,938.10/324,551.12
  6. Step 6: Final answer
    x = 131,844.26

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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.