Home / 279,582.04-419,343.90-79,889.50

Finding the Fourth Proportional to 279,582.04, 419,343.90 and 79,889.50

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Solution

The fourth proportional to 279,582.04, 419,343.90 and 79,889.50 is: 119,825.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,582.04 : 419,343.90 = 79,889.50 : x
  2. Step 2: Convert to fraction form
    279,582.04/419,343.90 = 79,889.50/x
  3. Step 3: Cross multiply
    279,582.04x = 419,343.90 × 79,889.50
  4. Step 4: Simplify right side
    279,582.04x = 33,501,174,499.05
  5. Step 5: Solve for x
    x = 33,501,174,499.05/279,582.04
  6. Step 6: Final answer
    x = 119,825.92

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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.