Home / 52,659.90-72,670.68-28,786.57

Finding the Fourth Proportional to 52,659.90, 72,670.68 and 28,786.57

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Solution

The fourth proportional to 52,659.90, 72,670.68 and 28,786.57 is: 39,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,659.90 : 72,670.68 = 28,786.57 : x
  2. Step 2: Convert to fraction form
    52,659.90/72,670.68 = 28,786.57/x
  3. Step 3: Cross multiply
    52,659.90x = 72,670.68 × 28,786.57
  4. Step 4: Simplify right side
    52,659.90x = 2,091,939,435.09
  5. Step 5: Solve for x
    x = 2,091,939,435.09/52,659.90
  6. Step 6: Final answer
    x = 39,725.47

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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.