Home / 65,756.22-90,683.97-56,231.82

Finding the Fourth Proportional to 65,756.22, 90,683.97 and 56,231.82

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Solution

The fourth proportional to 65,756.22, 90,683.97 and 56,231.82 is: 77,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,756.22 : 90,683.97 = 56,231.82 : x
  2. Step 2: Convert to fraction form
    65,756.22/90,683.97 = 56,231.82/x
  3. Step 3: Cross multiply
    65,756.22x = 90,683.97 × 56,231.82
  4. Step 4: Simplify right side
    65,756.22x = 5,099,324,677.93
  5. Step 5: Solve for x
    x = 5,099,324,677.93/65,756.22
  6. Step 6: Final answer
    x = 77,548.93

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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.