Home / 72,208.44-99,652.25-40,377.33

Finding the Fourth Proportional to 72,208.44, 99,652.25 and 40,377.33

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Solution

The fourth proportional to 72,208.44, 99,652.25 and 40,377.33 is: 55,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,208.44 : 99,652.25 = 40,377.33 : x
  2. Step 2: Convert to fraction form
    72,208.44/99,652.25 = 40,377.33/x
  3. Step 3: Cross multiply
    72,208.44x = 99,652.25 × 40,377.33
  4. Step 4: Simplify right side
    72,208.44x = 4,023,691,581.61
  5. Step 5: Solve for x
    x = 4,023,691,581.61/72,208.44
  6. Step 6: Final answer
    x = 55,723.29

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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.