Home / 324,535.78-486,747.51-87,823.18

Finding the Fourth Proportional to 324,535.78, 486,747.51 and 87,823.18

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Solution

The fourth proportional to 324,535.78, 486,747.51 and 87,823.18 is: 131,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,535.78 : 486,747.51 = 87,823.18 : x
  2. Step 2: Convert to fraction form
    324,535.78/486,747.51 = 87,823.18/x
  3. Step 3: Cross multiply
    324,535.78x = 486,747.51 × 87,823.18
  4. Step 4: Simplify right side
    324,535.78x = 42,747,714,185.28
  5. Step 5: Solve for x
    x = 42,747,714,185.28/324,535.78
  6. Step 6: Final answer
    x = 131,719.57

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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.