Home / 72,214.97-99,654.79-39,948.75

Finding the Fourth Proportional to 72,214.97, 99,654.79 and 39,948.75

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Solution

The fourth proportional to 72,214.97, 99,654.79 and 39,948.75 is: 55,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,214.97 : 99,654.79 = 39,948.75 : x
  2. Step 2: Convert to fraction form
    72,214.97/99,654.79 = 39,948.75/x
  3. Step 3: Cross multiply
    72,214.97x = 99,654.79 × 39,948.75
  4. Step 4: Simplify right side
    72,214.97x = 3,981,084,292.01
  5. Step 5: Solve for x
    x = 3,981,084,292.01/72,214.97
  6. Step 6: Final answer
    x = 55,128.24

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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.