Home / 72,382.22-99,889.43-40,550.43

Finding the Fourth Proportional to 72,382.22, 99,889.43 and 40,550.43

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Solution

The fourth proportional to 72,382.22, 99,889.43 and 40,550.43 is: 55,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,382.22 : 99,889.43 = 40,550.43 : x
  2. Step 2: Convert to fraction form
    72,382.22/99,889.43 = 40,550.43/x
  3. Step 3: Cross multiply
    72,382.22x = 99,889.43 × 40,550.43
  4. Step 4: Simplify right side
    72,382.22x = 4,050,559,338.95
  5. Step 5: Solve for x
    x = 4,050,559,338.95/72,382.22
  6. Step 6: Final answer
    x = 55,960.70

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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.