Home / 54,659.43-81,989.16-42,197.65

Finding the Fourth Proportional to 54,659.43, 81,989.16 and 42,197.65

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Solution

The fourth proportional to 54,659.43, 81,989.16 and 42,197.65 is: 63,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,659.43 : 81,989.16 = 42,197.65 : x
  2. Step 2: Convert to fraction form
    54,659.43/81,989.16 = 42,197.65/x
  3. Step 3: Cross multiply
    54,659.43x = 81,989.16 × 42,197.65
  4. Step 4: Simplify right side
    54,659.43x = 3,459,749,467.53
  5. Step 5: Solve for x
    x = 3,459,749,467.53/54,659.43
  6. Step 6: Final answer
    x = 63,296.48

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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.