Home / 52,685.36-72,704.91-28,811.51

Finding the Fourth Proportional to 52,685.36, 72,704.91 and 28,811.51

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Solution

The fourth proportional to 52,685.36, 72,704.91 and 28,811.51 is: 39,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,685.36 : 72,704.91 = 28,811.51 : x
  2. Step 2: Convert to fraction form
    52,685.36/72,704.91 = 28,811.51/x
  3. Step 3: Cross multiply
    52,685.36x = 72,704.91 × 28,811.51
  4. Step 4: Simplify right side
    52,685.36x = 2,094,738,241.51
  5. Step 5: Solve for x
    x = 2,094,738,241.51/52,685.36
  6. Step 6: Final answer
    x = 39,759.40

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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.