Home / 66,871.28-100,251.63-52,145.48

Finding the Fourth Proportional to 66,871.28, 100,251.63 and 52,145.48

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Solution

The fourth proportional to 66,871.28, 100,251.63 and 52,145.48 is: 78,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,871.28 : 100,251.63 = 52,145.48 : x
  2. Step 2: Convert to fraction form
    66,871.28/100,251.63 = 52,145.48/x
  3. Step 3: Cross multiply
    66,871.28x = 100,251.63 × 52,145.48
  4. Step 4: Simplify right side
    66,871.28x = 5,227,668,865.87
  5. Step 5: Solve for x
    x = 5,227,668,865.87/66,871.28
  6. Step 6: Final answer
    x = 78,175.10

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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.