Home / 53,310.31-79,982.78-15,870.71

Finding the Fourth Proportional to 53,310.31, 79,982.78 and 15,870.71

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Solution

The fourth proportional to 53,310.31, 79,982.78 and 15,870.71 is: 23,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,310.31 : 79,982.78 = 15,870.71 : x
  2. Step 2: Convert to fraction form
    53,310.31/79,982.78 = 15,870.71/x
  3. Step 3: Cross multiply
    53,310.31x = 79,982.78 × 15,870.71
  4. Step 4: Simplify right side
    53,310.31x = 1,269,383,570.74
  5. Step 5: Solve for x
    x = 1,269,383,570.74/53,310.31
  6. Step 6: Final answer
    x = 23,811.22

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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.