Home / 53,419.60-80,131.29-18,359.02

Finding the Fourth Proportional to 53,419.60, 80,131.29 and 18,359.02

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Solution

The fourth proportional to 53,419.60, 80,131.29 and 18,359.02 is: 27,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,419.60 : 80,131.29 = 18,359.02 : x
  2. Step 2: Convert to fraction form
    53,419.60/80,131.29 = 18,359.02/x
  3. Step 3: Cross multiply
    53,419.60x = 80,131.29 × 18,359.02
  4. Step 4: Simplify right side
    53,419.60x = 1,471,131,955.74
  5. Step 5: Solve for x
    x = 1,471,131,955.74/53,419.60
  6. Step 6: Final answer
    x = 27,539.18

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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.