Home / 51,087.11-70,498.42-28,114.78

Finding the Fourth Proportional to 51,087.11, 70,498.42 and 28,114.78

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Solution

The fourth proportional to 51,087.11, 70,498.42 and 28,114.78 is: 38,797.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,087.11 : 70,498.42 = 28,114.78 : x
  2. Step 2: Convert to fraction form
    51,087.11/70,498.42 = 28,114.78/x
  3. Step 3: Cross multiply
    51,087.11x = 70,498.42 × 28,114.78
  4. Step 4: Simplify right side
    51,087.11x = 1,982,047,568.65
  5. Step 5: Solve for x
    x = 1,982,047,568.65/51,087.11
  6. Step 6: Final answer
    x = 38,797.41

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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.