Home / 54,679.16-81,989.58-28,318.52

Finding the Fourth Proportional to 54,679.16, 81,989.58 and 28,318.52

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Solution

The fourth proportional to 54,679.16, 81,989.58 and 28,318.52 is: 42,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.16 : 81,989.58 = 28,318.52 : x
  2. Step 2: Convert to fraction form
    54,679.16/81,989.58 = 28,318.52/x
  3. Step 3: Cross multiply
    54,679.16x = 81,989.58 × 28,318.52
  4. Step 4: Simplify right side
    54,679.16x = 2,321,823,561.02
  5. Step 5: Solve for x
    x = 2,321,823,561.02/54,679.16
  6. Step 6: Final answer
    x = 42,462.68

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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.