Home / 52,129.82-71,938.89-28,256.30

Finding the Fourth Proportional to 52,129.82, 71,938.89 and 28,256.30

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Solution

The fourth proportional to 52,129.82, 71,938.89 and 28,256.30 is: 38,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,129.82 : 71,938.89 = 28,256.30 : x
  2. Step 2: Convert to fraction form
    52,129.82/71,938.89 = 28,256.30/x
  3. Step 3: Cross multiply
    52,129.82x = 71,938.89 × 28,256.30
  4. Step 4: Simplify right side
    52,129.82x = 2,032,726,857.51
  5. Step 5: Solve for x
    x = 2,032,726,857.51/52,129.82
  6. Step 6: Final answer
    x = 38,993.55

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1.5x scale

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.