Home / 65,542.32-90,378.36-43,147.44

Finding the Fourth Proportional to 65,542.32, 90,378.36 and 43,147.44

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Solution

The fourth proportional to 65,542.32, 90,378.36 and 43,147.44 is: 59,497.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,542.32 : 90,378.36 = 43,147.44 : x
  2. Step 2: Convert to fraction form
    65,542.32/90,378.36 = 43,147.44/x
  3. Step 3: Cross multiply
    65,542.32x = 90,378.36 × 43,147.44
  4. Step 4: Simplify right side
    65,542.32x = 3,899,594,865.40
  5. Step 5: Solve for x
    x = 3,899,594,865.40/65,542.32
  6. Step 6: Final answer
    x = 59,497.36

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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.