Home / 55,221.48-76,206-31,348.58

Finding the Fourth Proportional to 55,221.48, 76,206 and 31,348.58

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Solution

The fourth proportional to 55,221.48, 76,206 and 31,348.58 is: 43,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.48 : 76,206 = 31,348.58 : x
  2. Step 2: Convert to fraction form
    55,221.48/76,206 = 31,348.58/x
  3. Step 3: Cross multiply
    55,221.48x = 76,206 × 31,348.58
  4. Step 4: Simplify right side
    55,221.48x = 2,388,949,887.48
  5. Step 5: Solve for x
    x = 2,388,949,887.48/55,221.48
  6. Step 6: Final answer
    x = 43,261.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.