Home / 51,721.28-77,579.40-16,660.16

Finding the Fourth Proportional to 51,721.28, 77,579.40 and 16,660.16

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Solution

The fourth proportional to 51,721.28, 77,579.40 and 16,660.16 is: 24,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,721.28 : 77,579.40 = 16,660.16 : x
  2. Step 2: Convert to fraction form
    51,721.28/77,579.40 = 16,660.16/x
  3. Step 3: Cross multiply
    51,721.28x = 77,579.40 × 16,660.16
  4. Step 4: Simplify right side
    51,721.28x = 1,292,485,216.70
  5. Step 5: Solve for x
    x = 1,292,485,216.70/51,721.28
  6. Step 6: Final answer
    x = 24,989.43

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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.