Home / 52,488-78,682.46-20,917.58

Finding the Fourth Proportional to 52,488, 78,682.46 and 20,917.58

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Solution

The fourth proportional to 52,488, 78,682.46 and 20,917.58 is: 31,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,488 : 78,682.46 = 20,917.58 : x
  2. Step 2: Convert to fraction form
    52,488/78,682.46 = 20,917.58/x
  3. Step 3: Cross multiply
    52,488x = 78,682.46 × 20,917.58
  4. Step 4: Simplify right side
    52,488x = 1,645,846,153.65
  5. Step 5: Solve for x
    x = 1,645,846,153.65/52,488
  6. Step 6: Final answer
    x = 31,356.62

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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.