Home / 67,397.04-101,110.32-20,653.56

Finding the Fourth Proportional to 67,397.04, 101,110.32 and 20,653.56

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Solution

The fourth proportional to 67,397.04, 101,110.32 and 20,653.56 is: 30,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,397.04 : 101,110.32 = 20,653.56 : x
  2. Step 2: Convert to fraction form
    67,397.04/101,110.32 = 20,653.56/x
  3. Step 3: Cross multiply
    67,397.04x = 101,110.32 × 20,653.56
  4. Step 4: Simplify right side
    67,397.04x = 2,088,288,060.74
  5. Step 5: Solve for x
    x = 2,088,288,060.74/67,397.04
  6. Step 6: Final answer
    x = 30,984.86

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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.