Home / 49,981.25-68,980.21-28,760.06

Finding the Fourth Proportional to 49,981.25, 68,980.21 and 28,760.06

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Solution

The fourth proportional to 49,981.25, 68,980.21 and 28,760.06 is: 39,692.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,981.25 : 68,980.21 = 28,760.06 : x
  2. Step 2: Convert to fraction form
    49,981.25/68,980.21 = 28,760.06/x
  3. Step 3: Cross multiply
    49,981.25x = 68,980.21 × 28,760.06
  4. Step 4: Simplify right side
    49,981.25x = 1,983,875,078.96
  5. Step 5: Solve for x
    x = 1,983,875,078.96/49,981.25
  6. Step 6: Final answer
    x = 39,692.38

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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.