Home / 40,751.68-61,131.48-12,664.18

Finding the Fourth Proportional to 40,751.68, 61,131.48 and 12,664.18

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Solution

The fourth proportional to 40,751.68, 61,131.48 and 12,664.18 is: 18,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,751.68 : 61,131.48 = 12,664.18 : x
  2. Step 2: Convert to fraction form
    40,751.68/61,131.48 = 12,664.18/x
  3. Step 3: Cross multiply
    40,751.68x = 61,131.48 × 12,664.18
  4. Step 4: Simplify right side
    40,751.68x = 774,180,066.39
  5. Step 5: Solve for x
    x = 774,180,066.39/40,751.68
  6. Step 6: Final answer
    x = 18,997.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.