Home / 101,865.10-140,571.66-56,540.44

Finding the Fourth Proportional to 101,865.10, 140,571.66 and 56,540.44

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Solution

The fourth proportional to 101,865.10, 140,571.66 and 56,540.44 is: 78,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,865.10 : 140,571.66 = 56,540.44 : x
  2. Step 2: Convert to fraction form
    101,865.10/140,571.66 = 56,540.44/x
  3. Step 3: Cross multiply
    101,865.10x = 140,571.66 × 56,540.44
  4. Step 4: Simplify right side
    101,865.10x = 7,947,983,507.93
  5. Step 5: Solve for x
    x = 7,947,983,507.93/101,865.10
  6. Step 6: Final answer
    x = 78,024.60

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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.