Home / 42,752.05-64,134.96-13,169.85

Finding the Fourth Proportional to 42,752.05, 64,134.96 and 13,169.85

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Solution

The fourth proportional to 42,752.05, 64,134.96 and 13,169.85 is: 19,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,752.05 : 64,134.96 = 13,169.85 : x
  2. Step 2: Convert to fraction form
    42,752.05/64,134.96 = 13,169.85/x
  3. Step 3: Cross multiply
    42,752.05x = 64,134.96 × 13,169.85
  4. Step 4: Simplify right side
    42,752.05x = 844,647,802.96
  5. Step 5: Solve for x
    x = 844,647,802.96/42,752.05
  6. Step 6: Final answer
    x = 19,756.90

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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.