Home / 52,745.64-72,789.40-28,872.52

Finding the Fourth Proportional to 52,745.64, 72,789.40 and 28,872.52

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Solution

The fourth proportional to 52,745.64, 72,789.40 and 28,872.52 is: 39,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,745.64 : 72,789.40 = 28,872.52 : x
  2. Step 2: Convert to fraction form
    52,745.64/72,789.40 = 28,872.52/x
  3. Step 3: Cross multiply
    52,745.64x = 72,789.40 × 28,872.52
  4. Step 4: Simplify right side
    52,745.64x = 2,101,613,407.29
  5. Step 5: Solve for x
    x = 2,101,613,407.29/52,745.64
  6. Step 6: Final answer
    x = 39,844.31

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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.