Home / 65,942.32-98,929.04-21,568.90

Finding the Fourth Proportional to 65,942.32, 98,929.04 and 21,568.90

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Solution

The fourth proportional to 65,942.32, 98,929.04 and 21,568.90 is: 32,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,942.32 : 98,929.04 = 21,568.90 : x
  2. Step 2: Convert to fraction form
    65,942.32/98,929.04 = 21,568.90/x
  3. Step 3: Cross multiply
    65,942.32x = 98,929.04 × 21,568.90
  4. Step 4: Simplify right side
    65,942.32x = 2,133,790,570.86
  5. Step 5: Solve for x
    x = 2,133,790,570.86/65,942.32
  6. Step 6: Final answer
    x = 32,358.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.