Home / 84,518.36-126,780.48-40,122.24

Finding the Fourth Proportional to 84,518.36, 126,780.48 and 40,122.24

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Solution

The fourth proportional to 84,518.36, 126,780.48 and 40,122.24 is: 60,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,518.36 : 126,780.48 = 40,122.24 : x
  2. Step 2: Convert to fraction form
    84,518.36/126,780.48 = 40,122.24/x
  3. Step 3: Cross multiply
    84,518.36x = 126,780.48 × 40,122.24
  4. Step 4: Simplify right side
    84,518.36x = 5,086,716,845.88
  5. Step 5: Solve for x
    x = 5,086,716,845.88/84,518.36
  6. Step 6: Final answer
    x = 60,184.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.