Home / 40,489.13-60,733.68-20,755.10

Finding the Fourth Proportional to 40,489.13, 60,733.68 and 20,755.10

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Solution

The fourth proportional to 40,489.13, 60,733.68 and 20,755.10 is: 31,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,489.13 : 60,733.68 = 20,755.10 : x
  2. Step 2: Convert to fraction form
    40,489.13/60,733.68 = 20,755.10/x
  3. Step 3: Cross multiply
    40,489.13x = 60,733.68 × 20,755.10
  4. Step 4: Simplify right side
    40,489.13x = 1,260,533,601.77
  5. Step 5: Solve for x
    x = 1,260,533,601.77/40,489.13
  6. Step 6: Final answer
    x = 31,132.64

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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.