Home / 55,076.07-76,004.79-31,207.30

Finding the Fourth Proportional to 55,076.07, 76,004.79 and 31,207.30

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Solution

The fourth proportional to 55,076.07, 76,004.79 and 31,207.30 is: 43,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,076.07 : 76,004.79 = 31,207.30 : x
  2. Step 2: Convert to fraction form
    55,076.07/76,004.79 = 31,207.30/x
  3. Step 3: Cross multiply
    55,076.07x = 76,004.79 × 31,207.30
  4. Step 4: Simplify right side
    55,076.07x = 2,371,904,282.97
  5. Step 5: Solve for x
    x = 2,371,904,282.97/55,076.07
  6. Step 6: Final answer
    x = 43,065.97

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1.5x scale

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.