Home / 54,693.18-81,990.45-19,624.59

Finding the Fourth Proportional to 54,693.18, 81,990.45 and 19,624.59

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Solution

The fourth proportional to 54,693.18, 81,990.45 and 19,624.59 is: 29,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,693.18 : 81,990.45 = 19,624.59 : x
  2. Step 2: Convert to fraction form
    54,693.18/81,990.45 = 19,624.59/x
  3. Step 3: Cross multiply
    54,693.18x = 81,990.45 × 19,624.59
  4. Step 4: Simplify right side
    54,693.18x = 1,609,028,965.17
  5. Step 5: Solve for x
    x = 1,609,028,965.17/54,693.18
  6. Step 6: Final answer
    x = 29,419.19

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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.