Home / 67,127.62-100,708.52-19,744.40

Finding the Fourth Proportional to 67,127.62, 100,708.52 and 19,744.40

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Solution

The fourth proportional to 67,127.62, 100,708.52 and 19,744.40 is: 29,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,127.62 : 100,708.52 = 19,744.40 : x
  2. Step 2: Convert to fraction form
    67,127.62/100,708.52 = 19,744.40/x
  3. Step 3: Cross multiply
    67,127.62x = 100,708.52 × 19,744.40
  4. Step 4: Simplify right side
    67,127.62x = 1,988,429,302.29
  5. Step 5: Solve for x
    x = 1,988,429,302.29/67,127.62
  6. Step 6: Final answer
    x = 29,621.63

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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.