Home / 72,338.37-99,817.97-40,502.13

Finding the Fourth Proportional to 72,338.37, 99,817.97 and 40,502.13

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Solution

The fourth proportional to 72,338.37, 99,817.97 and 40,502.13 is: 55,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,338.37 : 99,817.97 = 40,502.13 : x
  2. Step 2: Convert to fraction form
    72,338.37/99,817.97 = 40,502.13/x
  3. Step 3: Cross multiply
    72,338.37x = 99,817.97 × 40,502.13
  4. Step 4: Simplify right side
    72,338.37x = 4,042,840,194.77
  5. Step 5: Solve for x
    x = 4,042,840,194.77/72,338.37
  6. Step 6: Final answer
    x = 55,887.91

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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.