Home / 52,739.36-72,780.05-28,540.31

Finding the Fourth Proportional to 52,739.36, 72,780.05 and 28,540.31

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Solution

The fourth proportional to 52,739.36, 72,780.05 and 28,540.31 is: 39,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.36 : 72,780.05 = 28,540.31 : x
  2. Step 2: Convert to fraction form
    52,739.36/72,780.05 = 28,540.31/x
  3. Step 3: Cross multiply
    52,739.36x = 72,780.05 × 28,540.31
  4. Step 4: Simplify right side
    52,739.36x = 2,077,164,824.92
  5. Step 5: Solve for x
    x = 2,077,164,824.92/52,739.36
  6. Step 6: Final answer
    x = 39,385.48

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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.