Home / 275,905.05-413,865.33-76,225.47

Finding the Fourth Proportional to 275,905.05, 413,865.33 and 76,225.47

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Solution

The fourth proportional to 275,905.05, 413,865.33 and 76,225.47 is: 114,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,905.05 : 413,865.33 = 76,225.47 : x
  2. Step 2: Convert to fraction form
    275,905.05/413,865.33 = 76,225.47/x
  3. Step 3: Cross multiply
    275,905.05x = 413,865.33 × 76,225.47
  4. Step 4: Simplify right side
    275,905.05x = 31,547,079,295.96
  5. Step 5: Solve for x
    x = 31,547,079,295.96/275,905.05
  6. Step 6: Final answer
    x = 114,340.35

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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.