Home / 52,742.85-72,785.21-28,871.03

Finding the Fourth Proportional to 52,742.85, 72,785.21 and 28,871.03

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Solution

The fourth proportional to 52,742.85, 72,785.21 and 28,871.03 is: 39,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.85 : 72,785.21 = 28,871.03 : x
  2. Step 2: Convert to fraction form
    52,742.85/72,785.21 = 28,871.03/x
  3. Step 3: Cross multiply
    52,742.85x = 72,785.21 × 28,871.03
  4. Step 4: Simplify right side
    52,742.85x = 2,101,383,981.47
  5. Step 5: Solve for x
    x = 2,101,383,981.47/52,742.85
  6. Step 6: Final answer
    x = 39,842.06

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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.