Home / 53,418.30-80,134.65-18,368.70

Finding the Fourth Proportional to 53,418.30, 80,134.65 and 18,368.70

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Solution

The fourth proportional to 53,418.30, 80,134.65 and 18,368.70 is: 27,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,418.30 : 80,134.65 = 18,368.70 : x
  2. Step 2: Convert to fraction form
    53,418.30/80,134.65 = 18,368.70/x
  3. Step 3: Cross multiply
    53,418.30x = 80,134.65 × 18,368.70
  4. Step 4: Simplify right side
    53,418.30x = 1,471,969,345.46
  5. Step 5: Solve for x
    x = 1,471,969,345.46/53,418.30
  6. Step 6: Final answer
    x = 27,555.53

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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.