Home / 91,721.97-137,518.48-40,406.29

Finding the Fourth Proportional to 91,721.97, 137,518.48 and 40,406.29

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Solution

The fourth proportional to 91,721.97, 137,518.48 and 40,406.29 is: 60,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,721.97 : 137,518.48 = 40,406.29 : x
  2. Step 2: Convert to fraction form
    91,721.97/137,518.48 = 40,406.29/x
  3. Step 3: Cross multiply
    91,721.97x = 137,518.48 × 40,406.29
  4. Step 4: Simplify right side
    91,721.97x = 5,556,611,836.21
  5. Step 5: Solve for x
    x = 5,556,611,836.21/91,721.97
  6. Step 6: Final answer
    x = 60,581.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.