Home / 65,935.36-90,990.68-35,721.44

Finding the Fourth Proportional to 65,935.36, 90,990.68 and 35,721.44

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Solution

The fourth proportional to 65,935.36, 90,990.68 and 35,721.44 is: 49,295.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,935.36 : 90,990.68 = 35,721.44 : x
  2. Step 2: Convert to fraction form
    65,935.36/90,990.68 = 35,721.44/x
  3. Step 3: Cross multiply
    65,935.36x = 90,990.68 × 35,721.44
  4. Step 4: Simplify right side
    65,935.36x = 3,250,317,937.57
  5. Step 5: Solve for x
    x = 3,250,317,937.57/65,935.36
  6. Step 6: Final answer
    x = 49,295.52

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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.