Home / 52,305.19-72,179.63-28,431.25

Finding the Fourth Proportional to 52,305.19, 72,179.63 and 28,431.25

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Solution

The fourth proportional to 52,305.19, 72,179.63 and 28,431.25 is: 39,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,305.19 : 72,179.63 = 28,431.25 : x
  2. Step 2: Convert to fraction form
    52,305.19/72,179.63 = 28,431.25/x
  3. Step 3: Cross multiply
    52,305.19x = 72,179.63 × 28,431.25
  4. Step 4: Simplify right side
    52,305.19x = 2,052,157,105.44
  5. Step 5: Solve for x
    x = 2,052,157,105.44/52,305.19
  6. Step 6: Final answer
    x = 39,234.29

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Half scale
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Double scale
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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.