Home / 72,486.09-100,025.69-40,222.44

Finding the Fourth Proportional to 72,486.09, 100,025.69 and 40,222.44

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Solution

The fourth proportional to 72,486.09, 100,025.69 and 40,222.44 is: 55,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,486.09 : 100,025.69 = 40,222.44 : x
  2. Step 2: Convert to fraction form
    72,486.09/100,025.69 = 40,222.44/x
  3. Step 3: Cross multiply
    72,486.09x = 100,025.69 × 40,222.44
  4. Step 4: Simplify right side
    72,486.09x = 4,023,277,113.37
  5. Step 5: Solve for x
    x = 4,023,277,113.37/72,486.09
  6. Step 6: Final answer
    x = 55,504.13

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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.