Home / 49,770.40-68,680.56-30,907.12

Finding the Fourth Proportional to 49,770.40, 68,680.56 and 30,907.12

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Solution

The fourth proportional to 49,770.40, 68,680.56 and 30,907.12 is: 42,650.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,770.40 : 68,680.56 = 30,907.12 : x
  2. Step 2: Convert to fraction form
    49,770.40/68,680.56 = 30,907.12/x
  3. Step 3: Cross multiply
    49,770.40x = 68,680.56 × 30,907.12
  4. Step 4: Simplify right side
    49,770.40x = 2,122,718,309.59
  5. Step 5: Solve for x
    x = 2,122,718,309.59/49,770.40
  6. Step 6: Final answer
    x = 42,650.22

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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.