Home / 45,728.97-68,936.19-42,680.84

Finding the Fourth Proportional to 45,728.97, 68,936.19 and 42,680.84

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Solution

The fourth proportional to 45,728.97, 68,936.19 and 42,680.84 is: 64,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,728.97 : 68,936.19 = 42,680.84 : x
  2. Step 2: Convert to fraction form
    45,728.97/68,936.19 = 42,680.84/x
  3. Step 3: Cross multiply
    45,728.97x = 68,936.19 × 42,680.84
  4. Step 4: Simplify right side
    45,728.97x = 2,942,254,150.92
  5. Step 5: Solve for x
    x = 2,942,254,150.92/45,728.97
  6. Step 6: Final answer
    x = 64,341.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.