Home / 57,400.09-79,211.61-31,905.81

Finding the Fourth Proportional to 57,400.09, 79,211.61 and 31,905.81

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Solution

The fourth proportional to 57,400.09, 79,211.61 and 31,905.81 is: 44,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,400.09 : 79,211.61 = 31,905.81 : x
  2. Step 2: Convert to fraction form
    57,400.09/79,211.61 = 31,905.81/x
  3. Step 3: Cross multiply
    57,400.09x = 79,211.61 × 31,905.81
  4. Step 4: Simplify right side
    57,400.09x = 2,527,310,856.25
  5. Step 5: Solve for x
    x = 2,527,310,856.25/57,400.09
  6. Step 6: Final answer
    x = 44,029.74

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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.