Home / 52,821.50-72,893.67-28,949.12

Finding the Fourth Proportional to 52,821.50, 72,893.67 and 28,949.12

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Solution

The fourth proportional to 52,821.50, 72,893.67 and 28,949.12 is: 39,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,821.50 : 72,893.67 = 28,949.12 : x
  2. Step 2: Convert to fraction form
    52,821.50/72,893.67 = 28,949.12/x
  3. Step 3: Cross multiply
    52,821.50x = 72,893.67 × 28,949.12
  4. Step 4: Simplify right side
    52,821.50x = 2,110,207,600.07
  5. Step 5: Solve for x
    x = 2,110,207,600.07/52,821.50
  6. Step 6: Final answer
    x = 39,949.79

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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.