Home / 49,680.16-68,528.64-30,563.20

Finding the Fourth Proportional to 49,680.16, 68,528.64 and 30,563.20

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Solution

The fourth proportional to 49,680.16, 68,528.64 and 30,563.20 is: 42,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,680.16 : 68,528.64 = 30,563.20 : x
  2. Step 2: Convert to fraction form
    49,680.16/68,528.64 = 30,563.20/x
  3. Step 3: Cross multiply
    49,680.16x = 68,528.64 × 30,563.20
  4. Step 4: Simplify right side
    49,680.16x = 2,094,454,530.05
  5. Step 5: Solve for x
    x = 2,094,454,530.05/49,680.16
  6. Step 6: Final answer
    x = 42,158.77

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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.