Home / 52,852.87-72,936.40-28,979.49

Finding the Fourth Proportional to 52,852.87, 72,936.40 and 28,979.49

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Solution

The fourth proportional to 52,852.87, 72,936.40 and 28,979.49 is: 39,991.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,852.87 : 72,936.40 = 28,979.49 : x
  2. Step 2: Convert to fraction form
    52,852.87/72,936.40 = 28,979.49/x
  3. Step 3: Cross multiply
    52,852.87x = 72,936.40 × 28,979.49
  4. Step 4: Simplify right side
    52,852.87x = 2,113,659,674.44
  5. Step 5: Solve for x
    x = 2,113,659,674.44/52,852.87
  6. Step 6: Final answer
    x = 39,991.39

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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.