Home / 81,052.71-111,876.50-47,076.47

Finding the Fourth Proportional to 81,052.71, 111,876.50 and 47,076.47

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Solution

The fourth proportional to 81,052.71, 111,876.50 and 47,076.47 is: 64,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,052.71 : 111,876.50 = 47,076.47 : x
  2. Step 2: Convert to fraction form
    81,052.71/111,876.50 = 47,076.47/x
  3. Step 3: Cross multiply
    81,052.71x = 111,876.50 × 47,076.47
  4. Step 4: Simplify right side
    81,052.71x = 5,266,751,005.07
  5. Step 5: Solve for x
    x = 5,266,751,005.07/81,052.71
  6. Step 6: Final answer
    x = 64,979.33

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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.