Home / 81,437.97-112,390.61-51,249.16

Finding the Fourth Proportional to 81,437.97, 112,390.61 and 51,249.16

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Solution

The fourth proportional to 81,437.97, 112,390.61 and 51,249.16 is: 70,727.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,437.97 : 112,390.61 = 51,249.16 : x
  2. Step 2: Convert to fraction form
    81,437.97/112,390.61 = 51,249.16/x
  3. Step 3: Cross multiply
    81,437.97x = 112,390.61 × 51,249.16
  4. Step 4: Simplify right side
    81,437.97x = 5,759,924,354.39
  5. Step 5: Solve for x
    x = 5,759,924,354.39/81,437.97
  6. Step 6: Final answer
    x = 70,727.75

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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.