Home / 52,728.13-72,764.82-28,854.81

Finding the Fourth Proportional to 52,728.13, 72,764.82 and 28,854.81

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Solution

The fourth proportional to 52,728.13, 72,764.82 and 28,854.81 is: 39,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,728.13 : 72,764.82 = 28,854.81 : x
  2. Step 2: Convert to fraction form
    52,728.13/72,764.82 = 28,854.81/x
  3. Step 3: Cross multiply
    52,728.13x = 72,764.82 × 28,854.81
  4. Step 4: Simplify right side
    52,728.13x = 2,099,615,055.78
  5. Step 5: Solve for x
    x = 2,099,615,055.78/52,728.13
  6. Step 6: Final answer
    x = 39,819.64

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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.