Home / 61,301.15-91,780.41-33,120.23

Finding the Fourth Proportional to 61,301.15, 91,780.41 and 33,120.23

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Solution

The fourth proportional to 61,301.15, 91,780.41 and 33,120.23 is: 49,587.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,301.15 : 91,780.41 = 33,120.23 : x
  2. Step 2: Convert to fraction form
    61,301.15/91,780.41 = 33,120.23/x
  3. Step 3: Cross multiply
    61,301.15x = 91,780.41 × 33,120.23
  4. Step 4: Simplify right side
    61,301.15x = 3,039,787,829.79
  5. Step 5: Solve for x
    x = 3,039,787,829.79/61,301.15
  6. Step 6: Final answer
    x = 49,587.78

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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.