Home / 77,043.12-106,192.44-51,540.30

Finding the Fourth Proportional to 77,043.12, 106,192.44 and 51,540.30

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Solution

The fourth proportional to 77,043.12, 106,192.44 and 51,540.30 is: 71,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,043.12 : 106,192.44 = 51,540.30 : x
  2. Step 2: Convert to fraction form
    77,043.12/106,192.44 = 51,540.30/x
  3. Step 3: Cross multiply
    77,043.12x = 106,192.44 × 51,540.30
  4. Step 4: Simplify right side
    77,043.12x = 5,473,190,215.33
  5. Step 5: Solve for x
    x = 5,473,190,215.33/77,043.12
  6. Step 6: Final answer
    x = 71,040.61

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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.