Home / 324,076.50-486,113.31-87,442.74

Finding the Fourth Proportional to 324,076.50, 486,113.31 and 87,442.74

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Solution

The fourth proportional to 324,076.50, 486,113.31 and 87,442.74 is: 131,163.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,076.50 : 486,113.31 = 87,442.74 : x
  2. Step 2: Convert to fraction form
    324,076.50/486,113.31 = 87,442.74/x
  3. Step 3: Cross multiply
    324,076.50x = 486,113.31 × 87,442.74
  4. Step 4: Simplify right side
    324,076.50x = 42,507,079,776.87
  5. Step 5: Solve for x
    x = 42,507,079,776.87/324,076.50
  6. Step 6: Final answer
    x = 131,163.72

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1.5x scale

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.