Home / 72,560.22-100,131.75-40,294.68

Finding the Fourth Proportional to 72,560.22, 100,131.75 and 40,294.68

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Solution

The fourth proportional to 72,560.22, 100,131.75 and 40,294.68 is: 55,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,560.22 : 100,131.75 = 40,294.68 : x
  2. Step 2: Convert to fraction form
    72,560.22/100,131.75 = 40,294.68/x
  3. Step 3: Cross multiply
    72,560.22x = 100,131.75 × 40,294.68
  4. Step 4: Simplify right side
    72,560.22x = 4,034,776,824.09
  5. Step 5: Solve for x
    x = 4,034,776,824.09/72,560.22
  6. Step 6: Final answer
    x = 55,605.91

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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.