Home / 52,712.68-72,742.86-28,839.04

Finding the Fourth Proportional to 52,712.68, 72,742.86 and 28,839.04

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Solution

The fourth proportional to 52,712.68, 72,742.86 and 28,839.04 is: 39,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,712.68 : 72,742.86 = 28,839.04 : x
  2. Step 2: Convert to fraction form
    52,712.68/72,742.86 = 28,839.04/x
  3. Step 3: Cross multiply
    52,712.68x = 72,742.86 × 28,839.04
  4. Step 4: Simplify right side
    52,712.68x = 2,097,834,249.25
  5. Step 5: Solve for x
    x = 2,097,834,249.25/52,712.68
  6. Step 6: Final answer
    x = 39,797.53

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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.