Home / 54,218.17-81,297.61-30,209.77

Finding the Fourth Proportional to 54,218.17, 81,297.61 and 30,209.77

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Solution

The fourth proportional to 54,218.17, 81,297.61 and 30,209.77 is: 45,298.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.17 : 81,297.61 = 30,209.77 : x
  2. Step 2: Convert to fraction form
    54,218.17/81,297.61 = 30,209.77/x
  3. Step 3: Cross multiply
    54,218.17x = 81,297.61 × 30,209.77
  4. Step 4: Simplify right side
    54,218.17x = 2,455,982,099.65
  5. Step 5: Solve for x
    x = 2,455,982,099.65/54,218.17
  6. Step 6: Final answer
    x = 45,298.14

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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.