Home / 99,242.73-136,954.38-53,920.35

Finding the Fourth Proportional to 99,242.73, 136,954.38 and 53,920.35

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Solution

The fourth proportional to 99,242.73, 136,954.38 and 53,920.35 is: 74,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,242.73 : 136,954.38 = 53,920.35 : x
  2. Step 2: Convert to fraction form
    99,242.73/136,954.38 = 53,920.35/x
  3. Step 3: Cross multiply
    99,242.73x = 136,954.38 × 53,920.35
  4. Step 4: Simplify right side
    99,242.73x = 7,384,628,103.63
  5. Step 5: Solve for x
    x = 7,384,628,103.63/99,242.73
  6. Step 6: Final answer
    x = 74,409.76

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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.