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Finding the Fourth Proportional to 51,800.88, 77,717.76 and 18,520.23

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Solution

The fourth proportional to 51,800.88, 77,717.76 and 18,520.23 is: 27,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,800.88 : 77,717.76 = 18,520.23 : x
  2. Step 2: Convert to fraction form
    51,800.88/77,717.76 = 18,520.23/x
  3. Step 3: Cross multiply
    51,800.88x = 77,717.76 × 18,520.23
  4. Step 4: Simplify right side
    51,800.88x = 1,439,350,790.28
  5. Step 5: Solve for x
    x = 1,439,350,790.28/51,800.88
  6. Step 6: Final answer
    x = 27,786.22

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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.