Home / 72,214.03-99,653.49-39,949.84

Finding the Fourth Proportional to 72,214.03, 99,653.49 and 39,949.84

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Solution

The fourth proportional to 72,214.03, 99,653.49 and 39,949.84 is: 55,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.03 : 99,653.49 = 39,949.84 : x
  2. Step 2: Convert to fraction form
    72,214.03/99,653.49 = 39,949.84/x
  3. Step 3: Cross multiply
    72,214.03x = 99,653.49 × 39,949.84
  4. Step 4: Simplify right side
    72,214.03x = 3,981,141,105.51
  5. Step 5: Solve for x
    x = 3,981,141,105.51/72,214.03
  6. Step 6: Final answer
    x = 55,129.74

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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.