Home / 324,499.14-486,688.53-87,811.05

Finding the Fourth Proportional to 324,499.14, 486,688.53 and 87,811.05

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Solution

The fourth proportional to 324,499.14, 486,688.53 and 87,811.05 is: 131,700.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,499.14 : 486,688.53 = 87,811.05 : x
  2. Step 2: Convert to fraction form
    324,499.14/486,688.53 = 87,811.05/x
  3. Step 3: Cross multiply
    324,499.14x = 486,688.53 × 87,811.05
  4. Step 4: Simplify right side
    324,499.14x = 42,736,630,842.26
  5. Step 5: Solve for x
    x = 42,736,630,842.26/324,499.14
  6. Step 6: Final answer
    x = 131,700.29

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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.