Home / 53,420.11-80,134.38-17,881.64

Finding the Fourth Proportional to 53,420.11, 80,134.38 and 17,881.64

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Solution

The fourth proportional to 53,420.11, 80,134.38 and 17,881.64 is: 26,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,420.11 : 80,134.38 = 17,881.64 : x
  2. Step 2: Convert to fraction form
    53,420.11/80,134.38 = 17,881.64/x
  3. Step 3: Cross multiply
    53,420.11x = 80,134.38 × 17,881.64
  4. Step 4: Simplify right side
    53,420.11x = 1,432,933,967.56
  5. Step 5: Solve for x
    x = 1,432,933,967.56/53,420.11
  6. Step 6: Final answer
    x = 26,823.87

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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.