Home / 279,721.64-419,582.01-69,359.58

Finding the Fourth Proportional to 279,721.64, 419,582.01 and 69,359.58

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Solution

The fourth proportional to 279,721.64, 419,582.01 and 69,359.58 is: 104,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,721.64 : 419,582.01 = 69,359.58 : x
  2. Step 2: Convert to fraction form
    279,721.64/419,582.01 = 69,359.58/x
  3. Step 3: Cross multiply
    279,721.64x = 419,582.01 × 69,359.58
  4. Step 4: Simplify right side
    279,721.64x = 29,102,031,989.16
  5. Step 5: Solve for x
    x = 29,102,031,989.16/279,721.64
  6. Step 6: Final answer
    x = 104,039.26

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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.