Home / 52,519.80-78,784.59-20,922.21

Finding the Fourth Proportional to 52,519.80, 78,784.59 and 20,922.21

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Solution

The fourth proportional to 52,519.80, 78,784.59 and 20,922.21 is: 31,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,519.80 : 78,784.59 = 20,922.21 : x
  2. Step 2: Convert to fraction form
    52,519.80/78,784.59 = 20,922.21/x
  3. Step 3: Cross multiply
    52,519.80x = 78,784.59 × 20,922.21
  4. Step 4: Simplify right side
    52,519.80x = 1,648,347,736.74
  5. Step 5: Solve for x
    x = 1,648,347,736.74/52,519.80
  6. Step 6: Final answer
    x = 31,385.26

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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.