Home / 72,494.22-100,036.87-40,230.57

Finding the Fourth Proportional to 72,494.22, 100,036.87 and 40,230.57

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Solution

The fourth proportional to 72,494.22, 100,036.87 and 40,230.57 is: 55,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,494.22 : 100,036.87 = 40,230.57 : x
  2. Step 2: Convert to fraction form
    72,494.22/100,036.87 = 40,230.57/x
  3. Step 3: Cross multiply
    72,494.22x = 100,036.87 × 40,230.57
  4. Step 4: Simplify right side
    72,494.22x = 4,024,540,301.12
  5. Step 5: Solve for x
    x = 4,024,540,301.12/72,494.22
  6. Step 6: Final answer
    x = 55,515.33

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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.