Home / 74,040.56-102,183-40,511.60

Finding the Fourth Proportional to 74,040.56, 102,183 and 40,511.60

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Solution

The fourth proportional to 74,040.56, 102,183 and 40,511.60 is: 55,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,040.56 : 102,183 = 40,511.60 : x
  2. Step 2: Convert to fraction form
    74,040.56/102,183 = 40,511.60/x
  3. Step 3: Cross multiply
    74,040.56x = 102,183 × 40,511.60
  4. Step 4: Simplify right side
    74,040.56x = 4,139,596,822.80
  5. Step 5: Solve for x
    x = 4,139,596,822.80/74,040.56
  6. Step 6: Final answer
    x = 55,909.85

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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.