Home / 54,521.70-81,782.28-14,540.60

Finding the Fourth Proportional to 54,521.70, 81,782.28 and 14,540.60

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Solution

The fourth proportional to 54,521.70, 81,782.28 and 14,540.60 is: 21,810.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,521.70 : 81,782.28 = 14,540.60 : x
  2. Step 2: Convert to fraction form
    54,521.70/81,782.28 = 14,540.60/x
  3. Step 3: Cross multiply
    54,521.70x = 81,782.28 × 14,540.60
  4. Step 4: Simplify right side
    54,521.70x = 1,189,163,011.66
  5. Step 5: Solve for x
    x = 1,189,163,011.66/54,521.70
  6. Step 6: Final answer
    x = 21,810.82

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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.