Home / 52,128.38-71,936.88-28,254.80

Finding the Fourth Proportional to 52,128.38, 71,936.88 and 28,254.80

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Solution

The fourth proportional to 52,128.38, 71,936.88 and 28,254.80 is: 38,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128.38 : 71,936.88 = 28,254.80 : x
  2. Step 2: Convert to fraction form
    52,128.38/71,936.88 = 28,254.80/x
  3. Step 3: Cross multiply
    52,128.38x = 71,936.88 × 28,254.80
  4. Step 4: Simplify right side
    52,128.38x = 2,032,562,157.02
  5. Step 5: Solve for x
    x = 2,032,562,157.02/52,128.38
  6. Step 6: Final answer
    x = 38,991.47

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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.