Home / 52,815.48-72,885.42-28,942.21

Finding the Fourth Proportional to 52,815.48, 72,885.42 and 28,942.21

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Solution

The fourth proportional to 52,815.48, 72,885.42 and 28,942.21 is: 39,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,815.48 : 72,885.42 = 28,942.21 : x
  2. Step 2: Convert to fraction form
    52,815.48/72,885.42 = 28,942.21/x
  3. Step 3: Cross multiply
    52,815.48x = 72,885.42 × 28,942.21
  4. Step 4: Simplify right side
    52,815.48x = 2,109,465,222.68
  5. Step 5: Solve for x
    x = 2,109,465,222.68/52,815.48
  6. Step 6: Final answer
    x = 39,940.28

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1.5x scale

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.