Home / 52,739.49-72,780.22-28,540.43

Finding the Fourth Proportional to 52,739.49, 72,780.22 and 28,540.43

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Solution

The fourth proportional to 52,739.49, 72,780.22 and 28,540.43 is: 39,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.49 : 72,780.22 = 28,540.43 : x
  2. Step 2: Convert to fraction form
    52,739.49/72,780.22 = 28,540.43/x
  3. Step 3: Cross multiply
    52,739.49x = 72,780.22 × 28,540.43
  4. Step 4: Simplify right side
    52,739.49x = 2,077,178,774.29
  5. Step 5: Solve for x
    x = 2,077,178,774.29/52,739.49
  6. Step 6: Final answer
    x = 39,385.65

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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.