Home / 53,761.76-80,651.28-18,711.44

Finding the Fourth Proportional to 53,761.76, 80,651.28 and 18,711.44

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Solution

The fourth proportional to 53,761.76, 80,651.28 and 18,711.44 is: 28,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,761.76 : 80,651.28 = 18,711.44 : x
  2. Step 2: Convert to fraction form
    53,761.76/80,651.28 = 18,711.44/x
  3. Step 3: Cross multiply
    53,761.76x = 80,651.28 × 18,711.44
  4. Step 4: Simplify right side
    53,761.76x = 1,509,101,586.64
  5. Step 5: Solve for x
    x = 1,509,101,586.64/53,761.76
  6. Step 6: Final answer
    x = 28,070.17

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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.