Home / 92,989.09-128,323.83-50,546.71

Finding the Fourth Proportional to 92,989.09, 128,323.83 and 50,546.71

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Solution

The fourth proportional to 92,989.09, 128,323.83 and 50,546.71 is: 69,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,989.09 : 128,323.83 = 50,546.71 : x
  2. Step 2: Convert to fraction form
    92,989.09/128,323.83 = 50,546.71/x
  3. Step 3: Cross multiply
    92,989.09x = 128,323.83 × 50,546.71
  4. Step 4: Simplify right side
    92,989.09x = 6,486,347,421.10
  5. Step 5: Solve for x
    x = 6,486,347,421.10/92,989.09
  6. Step 6: Final answer
    x = 69,753.85

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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.