Home / 323,975.16-485,929.92-87,341.76

Finding the Fourth Proportional to 323,975.16, 485,929.92 and 87,341.76

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Solution

The fourth proportional to 323,975.16, 485,929.92 and 87,341.76 is: 131,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,975.16 : 485,929.92 = 87,341.76 : x
  2. Step 2: Convert to fraction form
    323,975.16/485,929.92 = 87,341.76/x
  3. Step 3: Cross multiply
    323,975.16x = 485,929.92 × 87,341.76
  4. Step 4: Simplify right side
    323,975.16x = 42,441,972,019.81
  5. Step 5: Solve for x
    x = 42,441,972,019.81/323,975.16
  6. Step 6: Final answer
    x = 131,003.79

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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.