Home / 55,209-76,186.10-31,335.18

Finding the Fourth Proportional to 55,209, 76,186.10 and 31,335.18

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Solution

The fourth proportional to 55,209, 76,186.10 and 31,335.18 is: 43,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209 : 76,186.10 = 31,335.18 : x
  2. Step 2: Convert to fraction form
    55,209/76,186.10 = 31,335.18/x
  3. Step 3: Cross multiply
    55,209x = 76,186.10 × 31,335.18
  4. Step 4: Simplify right side
    55,209x = 2,387,305,157.00
  5. Step 5: Solve for x
    x = 2,387,305,157.00/55,209
  6. Step 6: Final answer
    x = 43,241.23

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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.