Home / 72,214.50-99,655.44-40,383.41

Finding the Fourth Proportional to 72,214.50, 99,655.44 and 40,383.41

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Solution

The fourth proportional to 72,214.50, 99,655.44 and 40,383.41 is: 55,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.50 : 99,655.44 = 40,383.41 : x
  2. Step 2: Convert to fraction form
    72,214.50/99,655.44 = 40,383.41/x
  3. Step 3: Cross multiply
    72,214.50x = 99,655.44 × 40,383.41
  4. Step 4: Simplify right side
    72,214.50x = 4,024,425,993.97
  5. Step 5: Solve for x
    x = 4,024,425,993.97/72,214.50
  6. Step 6: Final answer
    x = 55,728.78

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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.