Home / 57,405.22-79,214.61-31,909.58

Finding the Fourth Proportional to 57,405.22, 79,214.61 and 31,909.58

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Solution

The fourth proportional to 57,405.22, 79,214.61 and 31,909.58 is: 44,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,405.22 : 79,214.61 = 31,909.58 : x
  2. Step 2: Convert to fraction form
    57,405.22/79,214.61 = 31,909.58/x
  3. Step 3: Cross multiply
    57,405.22x = 79,214.61 × 31,909.58
  4. Step 4: Simplify right side
    57,405.22x = 2,527,704,934.96
  5. Step 5: Solve for x
    x = 2,527,704,934.96/57,405.22
  6. Step 6: Final answer
    x = 44,032.67

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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.