Home / 53,212.11-79,781.26-28,269.67

Finding the Fourth Proportional to 53,212.11, 79,781.26 and 28,269.67

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Solution

The fourth proportional to 53,212.11, 79,781.26 and 28,269.67 is: 42,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,212.11 : 79,781.26 = 28,269.67 : x
  2. Step 2: Convert to fraction form
    53,212.11/79,781.26 = 28,269.67/x
  3. Step 3: Cross multiply
    53,212.11x = 79,781.26 × 28,269.67
  4. Step 4: Simplify right side
    53,212.11x = 2,255,389,969.73
  5. Step 5: Solve for x
    x = 2,255,389,969.73/53,212.11
  6. Step 6: Final answer
    x = 42,384.90

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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.