Home / 54,397.77-81,558.37-21,089.76

Finding the Fourth Proportional to 54,397.77, 81,558.37 and 21,089.76

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Solution

The fourth proportional to 54,397.77, 81,558.37 and 21,089.76 is: 31,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,397.77 : 81,558.37 = 21,089.76 : x
  2. Step 2: Convert to fraction form
    54,397.77/81,558.37 = 21,089.76/x
  3. Step 3: Cross multiply
    54,397.77x = 81,558.37 × 21,089.76
  4. Step 4: Simplify right side
    54,397.77x = 1,720,046,449.29
  5. Step 5: Solve for x
    x = 1,720,046,449.29/54,397.77
  6. Step 6: Final answer
    x = 31,619.80

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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.