Home / 61,217.20-84,485.37-35,721.64

Finding the Fourth Proportional to 61,217.20, 84,485.37 and 35,721.64

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Solution

The fourth proportional to 61,217.20, 84,485.37 and 35,721.64 is: 49,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,217.20 : 84,485.37 = 35,721.64 : x
  2. Step 2: Convert to fraction form
    61,217.20/84,485.37 = 35,721.64/x
  3. Step 3: Cross multiply
    61,217.20x = 84,485.37 × 35,721.64
  4. Step 4: Simplify right side
    61,217.20x = 3,017,955,972.41
  5. Step 5: Solve for x
    x = 3,017,955,972.41/61,217.20
  6. Step 6: Final answer
    x = 49,299.15

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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.