Home / 51,821.28-77,729.40-16,760.16

Finding the Fourth Proportional to 51,821.28, 77,729.40 and 16,760.16

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Solution

The fourth proportional to 51,821.28, 77,729.40 and 16,760.16 is: 25,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,821.28 : 77,729.40 = 16,760.16 : x
  2. Step 2: Convert to fraction form
    51,821.28/77,729.40 = 16,760.16/x
  3. Step 3: Cross multiply
    51,821.28x = 77,729.40 × 16,760.16
  4. Step 4: Simplify right side
    51,821.28x = 1,302,757,180.70
  5. Step 5: Solve for x
    x = 1,302,757,180.70/51,821.28
  6. Step 6: Final answer
    x = 25,139.42

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1.5x scale

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.