Home / 52,764.40-72,813.90-28,890.64

Finding the Fourth Proportional to 52,764.40, 72,813.90 and 28,890.64

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Solution

The fourth proportional to 52,764.40, 72,813.90 and 28,890.64 is: 39,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,764.40 : 72,813.90 = 28,890.64 : x
  2. Step 2: Convert to fraction form
    52,764.40/72,813.90 = 28,890.64/x
  3. Step 3: Cross multiply
    52,764.40x = 72,813.90 × 28,890.64
  4. Step 4: Simplify right side
    52,764.40x = 2,103,640,171.90
  5. Step 5: Solve for x
    x = 2,103,640,171.90/52,764.40
  6. Step 6: Final answer
    x = 39,868.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.