Home / 52,685.20-72,704.82-28,811.26

Finding the Fourth Proportional to 52,685.20, 72,704.82 and 28,811.26

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Solution

The fourth proportional to 52,685.20, 72,704.82 and 28,811.26 is: 39,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,685.20 : 72,704.82 = 28,811.26 : x
  2. Step 2: Convert to fraction form
    52,685.20/72,704.82 = 28,811.26/x
  3. Step 3: Cross multiply
    52,685.20x = 72,704.82 × 28,811.26
  4. Step 4: Simplify right side
    52,685.20x = 2,094,717,472.27
  5. Step 5: Solve for x
    x = 2,094,717,472.27/52,685.20
  6. Step 6: Final answer
    x = 39,759.13

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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.