Home / 95,429.20-143,021.40-53,309.20

Finding the Fourth Proportional to 95,429.20, 143,021.40 and 53,309.20

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Solution

The fourth proportional to 95,429.20, 143,021.40 and 53,309.20 is: 79,895.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,429.20 : 143,021.40 = 53,309.20 : x
  2. Step 2: Convert to fraction form
    95,429.20/143,021.40 = 53,309.20/x
  3. Step 3: Cross multiply
    95,429.20x = 143,021.40 × 53,309.20
  4. Step 4: Simplify right side
    95,429.20x = 7,624,356,416.88
  5. Step 5: Solve for x
    x = 7,624,356,416.88/95,429.20
  6. Step 6: Final answer
    x = 79,895.42

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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.