Home / 54,086.40-81,134.64-14,643.84

Finding the Fourth Proportional to 54,086.40, 81,134.64 and 14,643.84

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Solution

The fourth proportional to 54,086.40, 81,134.64 and 14,643.84 is: 21,967.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,086.40 : 81,134.64 = 14,643.84 : x
  2. Step 2: Convert to fraction form
    54,086.40/81,134.64 = 14,643.84/x
  3. Step 3: Cross multiply
    54,086.40x = 81,134.64 × 14,643.84
  4. Step 4: Simplify right side
    54,086.40x = 1,188,122,686.62
  5. Step 5: Solve for x
    x = 1,188,122,686.62/54,086.40
  6. Step 6: Final answer
    x = 21,967.12

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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.